Exhibit 3.1
                         CERTIFICATE OF INCORPORATION
                                      OF
                            SPECTRIAN CORPORATION

   FIRST:   The  name  of  the   Corporation  is  Spectrian   Corporation   (the
"Corporation").

   SECOND:  The address of the  Corporation's  registered office in the State of
Delaware  is  Corporation  Trust  Center,  1209  Orange  Street,  in the City of
Wilmington,  County of New Castle,  zip code 19801.  The name of its  registered
agent at such address is The Corporation Trust Company.

   THIRD:  The  purpose  of the  Corporation  is to engage in any  lawful act or
activity for which  corporations may be organized under the General  Corporation
Law of Delaware.

   FOURTH:  The  Corporation  is  authorized to issue two classes of stock to be
designated  respectively  Common Stock and Preferred  Stock. The total number of
shares of all classes of stock which the  Corporation  has authority to issue is
Twenty-five  Million  (25,000,000),  consisting of Twenty  Million  (20,000,000)
shares of Common Stock, $0.001 par value (the "Common Stock"),  and Five Million
(5,000,000) shares of Preferred Stock, $0.001 par value (the "Preferred Stock").
Of the authorized  shares of Preferred  Stock,  Twenty Thousand  (20,000) shares
shall be designated "Series A Participating Preferred Stock" (sometimes referred
to herein as "Series A Preferred").

   The  Preferred  Stock may be issued from time to time in one or more  series.
The Board of Directors is hereby authorized subject to limitations prescribed by
law, to fix by resolution or resolutions the designations,  powers,  preferences
and rights, and the qualifications, limitations or restrictions thereof, of each
such series of Preferred Stock, including without limitation authority to fix by
resolution  or  resolutions,  the dividend  rights,  dividend  rate,  conversion
rights,  voting rights,  rights and terms of redemption  (including sinking fund
provisions),  redemption  price or prices,  and  liquidation  preferences of any
wholly unissued series of Preferred Stock, and the number of shares constituting
any such series and the designation thereof, or any of the foregoing.

   The Board of Directors is further  authorized  to increase (but not above the
total number of  authorized  shares of the class) or decrease (but not below the
number of shares of any such  series then  outstanding)  the number of shares of
any  series,  the  number of which was fixed by it,  subsequent  to the issue of
shares of such series then outstanding,  subject to the powers,  preferences and
rights, and the qualifications,  limitations and restrictions  thereof stated in
the resolution of the Board of Directors  originally fixing the number of shares
of such series. If the number of shares of any series is so decreased,  then the
shares  constituting  such decrease shall resume the status which they had prior
to the adoption of the resolution originally fixing the number of shares of such
series.

   The relative rights, preferences,  privileges, and restrictions granted to or
imposed upon the Common Stock,  the Series A Preferred  and the holders  thereof
(collectively, the "Stockholders") are as follows:

   1. Dividends and Distributions.

   a.  Subject to the prior and  superior  right of the holders of any shares of
any series of Preferred Stock ranking prior and superior to the shares of Series
A Participating Preferred Stock with respect to dividends, the holders of shares
of Series A Participating  Preferred Stock shall be entitled to receive when, as
and if declared by the Board of Directors out of funds legally available for the
purpose,  quarterly dividends payable in cash on the last day of January, April,
July and  October in each year (each  such date  being  referred  to herein as a
"Quarterly  Dividend Payment Date"),  commencing on the first Quarterly Dividend
Payment  Date  after the first  issuance  of a share or  fraction  of a share of
Series A Participating  Preferred  Stock, in an amount per share (rounded to the
nearest cent) equal to, subject to the provision for adjustment  hereinafter set
forth,  1,000 times the  aggregate per share amount of all cash  dividends,  and
1,000 times the  aggregate  per share  amount  (payable in kind) of all non-cash
dividends  or other  distributions  other than a  dividend  payable in shares of
Common  Stock or a  subdivision  of the  outstanding  shares of Common Stock (by
reclassification or otherwise),  declared on the Common Stock of the Corporation
(the "Common Stock") since the immediately  preceding Quarterly Dividend Payment
Date, 




or, with respect to the first Quarterly  Dividend  Payment Date, since the first
issuance of any share or fraction of a share of Series A Participating Preferred
Stock.  In the event the  Corporation  shall at any time after  October 23, 1996
(the  "Rights  Dividend  Declaration  Date") (i) declare any  dividend on Common
Stock payable in shares of Common Stock,  (ii) subdivide the outstanding  Common
Stock,  or (iii) combine the  outstanding  Common Stock into a smaller number of
shares, then in each such case the amount to which holders of shares of Series A
Participating  Preferred  Stock were  entitled  immediately  prior to such event
under the preceding  sentence shall be adjusted by multiplying  such amount by a
fraction,  the  numerator  of which is the  number of  shares  of  Common  Stock
outstanding  immediately  after such event and the  denominator  of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

   b. The  Corporation  shall declare a dividend or distribution on the Series A
Participating  Preferred  Stock as provided in paragraph  (a) above  immediately
after it declares a dividend or  distribution  on the Common Stock (other than a
dividend payable in shares of Common Stock).

   c.  Dividends  shall  begin to  accrue  on  outstanding  shares  of  Series A
Participating  Preferred  Stock from the  Quarterly  Dividend  Payment Date next
preceding the date of issue of such shares of Series A  Participating  Preferred
Stock,  unless the date of issue of such  shares is prior to the record date for
the first  Quarterly  Dividend  Payment  Date,  in which case  dividends on such
shares  shall begin to accrue from the date of issue of such  shares,  or unless
the date of issue is a Quarterly  Dividend  Payment  Date or is a date after the
record date for the determination of holders of shares of Series A Participating
Preferred  Stock  entitled  to receive a  quarterly  dividend  and  before  such
Quarterly  Dividend Payment Date, in either of which events such dividends shall
begin to accrue from such Quarterly  Dividend  Payment Date.  Accrued but unpaid
dividends  shall not bear  interest.  Dividends  paid on the  shares of Series A
Participating  Preferred  Stock in an amount less than the total  amount of such
dividends at the time accrued and payable on such shares shall be allocated  pro
rata on a  share-by-share  basis among all such shares at the time  outstanding.
The Board of Directors may fix a record date for the determination of holders of
shares of Series A Participating  Preferred Stock entitled to receive payment of
a dividend or distribution declared thereon,  which record date shall be no more
than 30 days prior to the date fixed for the payment thereof.

   2. Voting Rights.  The holders of shares of Series A Participating  Preferred
Stock shall have the following voting rights:

     a. Subject to the  provision for  adjustment  hereinafter  set forth,  each
   share of Series A  Participating  Preferred  Stock  shall  entitle the holder
   thereof to 1,000 votes on all matters submitted to a vote of the shareholders
   of the Corporation.  In the event the Corporation shall at any time after the
   Rights  Dividend  Declaration  Date (i) declare any  dividend on Common Stock
   payable in shares of Common  Stock,  (ii)  subdivide the  outstanding  Common
   Stock, or (iii) combine the outstanding Common Stock into a smaller number of
   shares, then in each such case the number of votes per share to which holders
   of shares of Series A Participating Preferred Stock were entitled immediately
   prior to such  event  shall be  adjusted  by  multiplying  such  number  by a
   fraction,  the  numerator  of which is the  number of shares of Common  Stock
   outstanding  immediately after such event and the denominator of which is the
   number of shares of Common Stock that were outstanding  immediately  prior to
   such event.

     b. Except as otherwise  provided herein or by law, the holders of shares of
   Series A  Participating  Preferred  Stock and the holders of shares of Common
   Stock shall vote together as one class on all matters  submitted to a vote of
   stockholders of the Corporation.

     c. Except as required by law,  holders of Series A Participating  Preferred
   Stock  shall have no special  voting  rights and their  consent  shall not be
   required  (except to the extent  they are  entitled  to vote with  holders of
   Common Stock as set forth herein) for taking any corporate action.

   3. Certain Restrictions.

   a. The Corporation  shall not declare any dividend on, make any  distribution
on, or redeem or purchase or otherwise  acquire for  consideration any shares of
Common  Stock  after the first  issuance  of a share or  fraction  of a share of
Series A Participating  Preferred Stock unless  concurrently  therewith it shall
declare a dividend on the Series A Participating  Preferred Stock as required by
Section 1 hereof.

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   b. Whenever quarterly  dividends or other dividends or distributions  payable
on the Series A  Participating  Preferred  Stock as provided in Section 1 are in
arrears,   thereafter   and  until  all   accrued  and  unpaid   dividends   and
distributions,  whether  or not  declared,  on shares of Series A  Participating
Preferred Stock  outstanding shall have been paid in full, the Corporation shall
not

      (1)  declare or pay  dividends  on,  make any other  distributions  on, or
   redeem or purchase or otherwise acquire for consideration any shares of stock
   ranking  junior (either as to dividends or upon  liquidation,  dissolution or
   winding up) to the Series A Participating Preferred Stock;

      (2) declare or pay dividends on, or make any other  distributions  on, any
   shares  of  stock  ranking  on a  parity  (either  as to  dividends  or  upon
   liquidation, dissolution or winding up) with Series A Participating Preferred
   Stock, except dividends paid ratably on the Series A Participating  Preferred
   Stock and all such parity stock on which  dividends are payable or in arrears
   in  proportion  to the total  amounts to which the holders of all such shares
   are then entitled;

      (3) redeem or purchase or otherwise  acquire for  consideration  shares of
   any stock  ranking on a parity  (either as to dividends or upon  liquidation,
   dissolution or winding up) with the Series A Participating  Preferred  Stock,
   provided that the Corporation  may at any time redeem,  purchase or otherwise
   acquire  shares of any such parity  stock in exchange for shares of any stock
   of  the   Corporation   ranking  junior  (either  as  to  dividends  or  upon
   dissolution,  liquidation  or  winding  up) to  the  Series  A  Participating
   Preferred Stock;

      (4) purchase or otherwise acquire for consideration any shares of Series A
   Participating  Preferred  Stock,  or any shares of stock  ranking on a parity
   with the Series A Participating  Preferred Stock, except in accordance with a
   purchase offer made in writing or by publication  (as determined by the Board
   of  Directors)  to all holders of such shares upon such terms as the Board of
   Directors,  after  consideration of the respective  annual dividend rates and
   other relative rights and  preferences of the respective  series and classes,
   shall  determine  in good faith will result in fair and  equitable  treatment
   among the respective series or classes.

   c. The  Corporation  shall not permit any  subsidiary of the  Corporation  to
purchase  or  otherwise  acquire  for  consideration  any shares of stock of the
Corporation unless the Corporation could, under paragraph (a) of this Section 3,
purchase or otherwise acquire such shares at such time and in such manner.

   4. Reacquired  Shares.  Any shares of Series A Participating  Preferred Stock
purchased  or otherwise  acquired by the  Corporation  in any manner  whatsoever
shall be retired and canceled promptly after the acquisition  thereof.  All such
shares shall upon their  cancellation  become  authorized but unissued shares of
Preferred  Stock and may be reissued as part of a new series of Preferred  Stock
to be created by resolution or resolutions of the Board of Directors, subject to
the conditions and restrictions on issuance set forth herein.

   5. Liquidation, Dissolution or Winding Up.

   a. Upon any liquidation  (voluntary or otherwise),  dissolution or winding up
of the  Corporation,  no distribution  shall be made to the holders of shares of
stock ranking junior (either as to dividends or upon liquidation, dissolution or
winding up) to the Series A Participating Preferred Stock unless, prior thereto,
the  holders  of shares of Series A  Participating  Preferred  Stock  shall have
received one hundred  twenty-six  thousand dollars ($126,000) per share, plus an
amount equal to accrued and unpaid dividends and distributions thereon,  whether
or not  declared,  to the  date of  such  payment  (the  "Series  A  Liquidation
Preference").  Following  the  payment  of  the  full  amount  of the  Series  A
Liquidation Preference, no additional distributions shall be made to the holders
of shares of Series A Participating  Preferred Stock unless,  prior thereto, the
holders of shares of Common  Stock shall have  received an amount per share (the
"Common Adjustment") equal to the quotient obtained by dividing (i) the Series A
Liquidation  Preference by (ii) 1,000 (as appropriately adjusted as set forth in
subparagraph  (c) below to reflect such events as stock splits,  stock dividends
and  recapitalization  with respect to the Common  Stock) (such number in clause
(ii), the "Adjustment Number").  Following the payment of the full amount of the
Series A  Liquidation  Preference  and the Common  Adjustment  in respect of all
outstanding shares of Series A 

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Participating Preferred Stock and Common Stock, respectively,  holders of Series
A  Participating  Preferred  Stock and  holders of shares of Common  Stock shall
receive their  ratable and  proportionate  share of the  remaining  assets to be
distributed  in the ratio of the  Adjustment  Number to 1 with  respect  to such
Preferred Stock and Common Stock, on a per share basis, respectively.

   b. In the event,  however,  that there are not sufficient assets available to
permit  payment  in  full  to  the  Series  A  Liquidation  Preference  and  the
liquidation  preferences of all other series of Preferred  Stock,  if any, which
rank on a parity  with the Series A  Participating  Preferred  Stock,  then such
remaining  assets  shall be  distributed  ratably to the  holders of such parity
shares in proportion to their respective liquidation preferences.  In the event,
however,  that there are not  sufficient  assets  available to permit payment in
full of the Common  Adjustment,  then such remaining assets shall be distributed
ratably to the holders of Common Stock.

   c. In the event the  Corporation  shall at any time after the Rights Dividend
Declaration  Date (i) declare any dividend on Common Stock  payable in shares of
Common Stock, (ii) subdivide the outstanding  Common Stock, or (iii) combine the
outstanding Common Stock into a smaller number of shares, then in each such case
the  Adjustment  Number  in  effect  immediately  prior to such  event  shall be
adjusted by multiplying  such  Adjustment  Number by a fraction the numerator of
which is the number of shares of Common Stock outstanding immediately after such
event and the  denominator of which is the number of shares of Common Stock that
were outstanding immediately prior to such event.

   d.  Consolidation,  Merger, etc. In case the Corporation shall enter into any
consolidation,  merger,  combination or other transaction in which the shares of
Common Stock are exchanged for or changed into other stock or  securities,  cash
and/or  any  other  property,  then in any such  case  the  shares  of  Series A
Participating  Preferred Stock shall at the same time be similarly  exchanged or
changed  in an  amount  per  share  (subject  to the  provision  for  adjustment
hereinafter  set  forth)  equal to 1,000  times the  aggregate  amount of stock,
securities,  cash and/or any other property  (payable in kind),  as the case may
be, into which or for which each share of Common Stock is changed or  exchanged.
In the  event  the  Corporation  shall at any time  after  the  Rights  Dividend
Declaration  Date (i) declare any dividend on Common Stock  payable in shares of
Common Stock, (ii) subdivide the outstanding  Common Stock, or (iii) combine the
outstanding Common Stock into a smaller number of shares, then in each such case
the amount set forth in the  preceding  sentence with respect to the exchange or
change of shares of Series A Participating  Preferred Stock shall be adjusted by
multiplying  such amount by a fraction  the  numerator of which is the number of
shares  of  Common  Stock  outstanding  immediately  after  such  event  and the
denominator  of  which is the  number  of  shares  of  Common  Stock  that  were
outstanding immediately prior to such event.

   6. No Redemption.  The shares of Series A Participating Preferred Stock shall
not be redeemable.

   7. Ranking.  The Series A Participating  Preferred Stock shall rank junior to
all other  series of the  Corporation's  Preferred  Stock as to the  payment  of
dividends and the  distribution  of assets,  unless the terms of any such series
shall provide otherwise.

   8. Amendment.  This Certificate of Incorporation of the Corporation shall not
be further  amended in any manner  which  would  materially  alter or change the
powers,  preference or special  rights of the Series A  Participating  Preferred
Stock so as to affect them adversely without the affirmative vote of the holders
of a  majority  or more of the  outstanding  shares  of  Series A  Participating
Preferred Stock, voting separately as a class.

   9. Fractional Shares. Series A Participating Preferred Stock may be issued in
fractions  of a share which shall  entitle the  holder,  in  proportion  to such
holder's  fractional  shares,  to exercise  voting  rights,  receive  dividends,
participate  in  distributions  and to have the  benefit of all other  rights of
holders of Series A Participating Preferred Stock.

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   FIFTH: The name and mailing address of the incorporator are as follows:

                        Bruce R. Wright        
                        Spectrian Corporation
                        350 W. Java Drive
                        Sunnyvale, CA 94089
                        
   SIXTH: The Corporation is to have perpetual existence.

   SEVENTH:  The election of directors  need not be by written  ballot  unless a
stockholder  demands election by written ballot at a meeting of stockholders and
before voting begins or unless the Bylaws of the Corporation shall so provide.

   EIGHTH: The number of directors which constitute the whole Board of Directors
of the Corporation shall be designated in the Bylaws of the Corporation.

   NINTH:  In furtherance  and not in limitation of the powers  conferred by the
laws of the State of Delaware, the Board of Directors is expressly authorized to
adopt, alter, amend or repeal the Bylaws of the Corporation.

   TENTH: To the fullest extent  permitted by the Delaware  General  Corporation
Law as  the  same  exists  or may  hereafter  be  amended,  no  director  of the
Corporation  shall be personally  liable to the Corporation or its  stockholders
for monetary damages for breach of fiduciary duty as a director.

   Neither any  amendment  nor repeal of this  Article,  nor the adoption of any
provision of this Certificate of Incorporation  inconsistent  with this Article,
shall  eliminate  or reduce the effect of this  Article in respect of any matter
occurring,  or any cause of action,  suit or claim that,  but for this  Article,
would  accrue or  arise,  prior to such  amendment,  repeal  or  adoption  of an
inconsistent provision.

   ELEVENTH:  At the election of directors  of the  Corporation,  each holder of
stock or of any class or series of stock  shall be  entitled to as many votes as
shall equal the number of votes which such stockholder would be entitled to cast
for the  election  of  directors  with  respect  to his or her  shares  of stock
multiplied  by the number of directors to be elected and may cast all such votes
for any director or for any two or more of them as such stockholder may see fit.

   TWELFTH:  Meetings of stockholders may be held within or without the State of
Delaware,  as the Bylaws may provide.  The books of the  Corporation may be kept
(subject  to any  provision  contained  in the laws of the  State  of  Delaware)
outside of the State of  Delaware  at such place or places as may be  designated
from time to time by the Board of Directors or in the Bylaws of the Corporation.

   THIRTEENTH:  The Corporation  reserves the right to amend,  alter,  change or
repeal any provision  contained in this  Certificate  of  Incorporation,  in the
manner now or hereafter prescribed by the laws of the State of Delaware, and all
rights conferred herein are granted subject to this reservation.

   The  undersigned   incorporator   hereby   acknowledges  that  the  foregoing
Certificate  of  Incorporation  is his act and deed and  that the  facts  stated
herein are true.

Dated: May 21, 1997

                                           /s/ Bruce R. Wright
                                           -----------------------
                                           Bruce R. Wright
                                           Incorporator

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