MONTHLY ENGINEERING REPORT NO. 6 IMPROVEMENT OF(SANITIZED)

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78-03300A001600030013-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 22, 2016
• Document Release Date: February 8, 2012
• Sequence Number: 13
• Publication Date: March 31, 1961
• Content Type: REPORT

Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-0330OA001600030013-6
CONFIDENTIAL
poont r Engineering Rs3port No. 6
s.mp 7emem t of Wide-Band : Radar
De tget&on TecY r.q e
Period Covered 1 March 1961 to .334. March 1961
DOCUMENT NO.
NO CHANGE IN CLASS. O
C{ DECLASSIFIED
CLASS. CHANGED TO: TS S
NEXT REVIEW DATE:
AUTH: H 70?
DATE,- REVIEWER. 010956 - 491.
WARNING: This docum-at contains informer wion affeo the national
daf'anse of the United States within the meaning of the
Espionage Laws. Title 18, U.S-C,9,, Sections 793 and 794?
Its transmission or the revelation of Its contents in any
raper to an unaithorized person is prohibited by law.
CONFIDENTIAL
CONTROL NUMB$R
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Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-0330OA001600030013-6
 Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-03300A001600030013-6
This report covers the s=ue' period iii"' '6 ntract activity for Improvement
of FM Rader Detection Techniques.
The job has been staffed by a Conmmlti.ng Project Engineer and a Senior
Engineer working part .ire as regal cd. Four full -time engineers complemenrt
the contract staff. The period has been devoted to a continuation of efforts
of the laat period.
Activities of the Report Period
A broasa Jared vorrady trrm>el.ator has been corestvucted using a traveling
wave tube in the 1A to 2.4 Lau: range. While this range is not compatible
with the 'agar ystova. the asork has pcrritted the evaluation of the broadband
technione ?te th a:dstiag er igaent. 1M feasibility of the device has been
demonet "at t ? nd a nronrt1 basis hze been established for attempting to implement
a. device in the appropriate frequency range, 12.1 to 18 I. The translation
achieve,-' to date provided a I me shift in the input, frequency with a maxl>esm
eUppreseLa . of input frequency aird cross products of 17 db. This translation
end suppression was achieved by t ransi ~t3.me modulation of the TWT helix voltage
' tl?. a se too h vo. t e. T 20?> Ta Jf s r tooth was applied at a 1 me sweep rate.
Flyback tine of the s :,:rto~~i h was approximately ld of the sweep period. Scum
improve ae t in m s ior~ ray be, obtained by Improiring the flyback characteristic.
Work is c=~6?';~.; l1.", g ort than approaab.,
'flaying comp:~.etnd the design fox- tae Ugh voltage sweep circuit for the
back ard-i a e o ci: ] fi.on, attention Is now directed for future effort to
.include the high voltage source rind power rupple" necessary for the circuit
operation., Fac:d~ g .9sg T-7U 2 then follow.
Breadboard -roue c ontirrues on the ar five filter. ' r d the associated sampl4 "g
and readout circuitry. Two approachec are, bsix g talmn for the filters. One
utilizes a Bridge T mill netuor.c as the frequency sensitive element alone; the
second would utilize the .: c-a4e element in P. degenerative feedback loop with high
gain. The first has been -,aceessfu ly tested; the second is now being developed.
n
nte tai ate of system design are ro dependent upon the area resolution that
the type o4' scanning syst required dofires the system philosophy. The present
approach 1s dependent upon a well defined RF beam Impinging on the surface of
interrogation. The appl3r,Gbil3 t5' of such an approach depends on the ability to
provide a sharply foounc . seen. Fs.lisa3ra.ry investigations have been conducted
on antenna types to serve time purpo::o. T o methods have same promises these
employ lenses or ellipsoidal re.flectors. Size and weight are the factors of
concern in these types, although u,3e of these would servo to evaluate the needs.
Program for the Ersselhg Month.
Continued development and packaging tril.1 provide the effort for the
succeeding period. I fort; will be directed toward procurement of a suitable
traveling wave tube for the translation scheme. Packaging of the BWO power
supply follows. The fi.ltoring, tLaing and sampling component development Will
be continued.
ON FI FNTIAL'
17, 7d, L
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Declassified in Part - Sanitized Copy Approved for Release 2012/02/08: CIA-RDP78-03300A001600030013-6