Accession Number : AD0859620

Title :   UHF Film Integrated Circuits.

Descriptive Note : Quarterly rept. no. 4, 1 Mar-31 May 69,

Corporate Author : RCA LABS PRINCETON N J

Personal Author(s) : Caulton,Martin ; DeBrecht,Robert E. ; Hershenov,Bernard ; Hughes,John J. ; Knight,Stanley P.

Report Date : SEP 1969

Pagination or Media Count : 53

Abstract : The purpose of this project is to investigate lumped-element versus microstrip circuitry for use (1) at microwave frequencies (up to X-band), (2) with high-power active devices, and (3) as transforming networks between radically different impedances. (a) Materials and Technology - Thin-film lumped-element circuits have been constructed using a technique which allows densification of the dielectric without any degradation of circuit metal. The circuit losses have been markedly improved because of the improved dielectric. (b) Measurement Technique - The Q of an inductor and a diode up to X-band has been measured using transmission resonance techniques. The inductor Q was over 200 at 6 GHz. The diode Q was measured using a coaxial line resonant system. The criteria for the measurement of Q's of lumped elements by resonating with distributed lines are discussed. (c) lumped-Element Hybrids - Low-pass filters and quadrature hybrids have been fabricated in thin-film lumped-element form. The performance of these circuits in the S-band region is discussed. (d) Lumped-Element Amplifiers - New lumped-element circuits have been designed and their layout and design are discussed. (e) Distributed Circuits - The characteristics of coupled microstrip lines have been studied, and definitive measurements on odd- and even-mode impedances and velocities have been made. Nichrome resistors have been studied and show improved stability compared with chrome resistors. A microstrip mixer-detector tester is described. (Author)

Descriptors :   (*INTEGRATED CIRCUITS, *DIELECTRIC FILMS), MICROWAVE EQUIPMENT, ULTRAHIGH FREQUENCY, STRIP TRANSMISSION LINES, MICROELECTRONICS, FREQUENCY MULTIPLIERS, WAVEGUIDE COUPLERS, COUPLING CIRCUITS, PHASE SHIFT CIRCUITS, CAPACITORS, COILS, RESONANT FREQUENCY, SILICON DIOXIDE, X BAND, S BAND, RESISTORS

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE