A Ku band converter IC

Author

Kaneko, T. ; Miya, T. ; Yoshida, S.

Author_Institution

NEC Corp., Tokyo, Japan

fYear

1992

fDate

1-5 June 1992

Firstpage

451

Abstract

A one-chip downconverter IC composed of prescaler, VCO (voltage-controlled oscillator), LNA (low-noise amplifier) mixer, and IF (intermediate frequency) buffer has been developed for DBS (direct broadcast satellite) and CS (communication satellite) applications. This IC was fabricated on a 1.2*2.8 mm/sup 2/ chip. The noise figure was less than 8 dB and the conversion gain was more than 10 dB, and the observed phase noise was -80 dBc/Hz at a 10-kHz offset frequency from a 10.75 GHz requirements. This is the first report of a dynamic 1/12 prescaler operating in the 9 to 12 GHz range, and a multivibrator operating at X-band in a multifunction IC. These successful results made it possible to realize the one-chip VCO downconverter IC, and to directly connect to a conventional silicon prescaler and PLL (phase-locked loop) IC. This IC is promising for miniaturization and cost reduction of CS receivers.<>

Keywords

MMIC; buffer circuits; direct broadcasting by satellite; frequency convertors; microwave amplifiers; microwave oscillators; mixers (circuits); satellite links; variable-frequency oscillators; 10.75 GHz; DBS; IF buffer; LNA; PLL; VCO; communication satellites; conversion gain; downconverter IC; mixer; multifunction IC; multivibrator; noise figure; phase noise; prescaler; Application specific integrated circuits; Artificial satellites; Frequency; Low-noise amplifiers; Mixers; Noise figure; Phase locked loops; Phase noise; Satellite broadcasting; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1992., IEEE MTT-S International

Conference_Location

Albuquerque, NM, USA

ISSN

0149-645X

Print_ISBN

0-7803-0611-2

Type

conf

DOI

10.1109/MWSYM.1992.188010

Filename

188010