A low current gaas monolithic image rejection downconverter for x-band broadcast satellite applications

Toshihiko Yoshimasu, Nobuyuki Matsumoto, Takashi Tomita, Eiji Suematsu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This paper describes the design, fabrication and performance of a fully integrated X-band monolithic image rejection downcoverter. The downconverter consists of a low noise amplifier, an image rejection mixer and an intermediate frequency amplifier. The downconverter receives Rf signals between 11.7 and 12.3 GHz and converts them down to IF frequency between 1.0 and 1.6 GHz. A conversion gain of 46 ± 1 dB, a noise figure of less than 3.3 dB and an image rejection of more than 30 dB have been achieved over the RF frequency range. The chip size of the downconverter is 1.9 mm x 2.2 mm and its current dissipation is only 43 mA. Since the downconverter has sufficient image rejection due to an on-chip bandstop filter, it requires no off-chip circuits. Therefore, the use of this down-converter in X-band broadcast satellite applications will lead to a great reduction in size and current dissipation.

Original languageEnglish
Pages (from-to)2433-2438
Number of pages6
JournalIEEE Transactions on Microwave Theory and Techniques
Volume40
Issue number12
DOIs
Publication statusPublished - 1992
Externally publishedYes

Fingerprint

Intermediate frequency amplifiers
Mixer circuits
Notch filters
Low noise amplifiers
Noise figure
low currents
rejection
Satellites
Fabrication
Networks (circuits)
chips
superhigh frequencies
intermediate frequency amplifiers
dissipation
down-converters
bandstop filters
low noise
amplifiers
frequency ranges
fabrication

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Radiation

Cite this

A low current gaas monolithic image rejection downconverter for x-band broadcast satellite applications. / Yoshimasu, Toshihiko; Matsumoto, Nobuyuki; Tomita, Takashi; Suematsu, Eiji.

In: IEEE Transactions on Microwave Theory and Techniques, Vol. 40, No. 12, 1992, p. 2433-2438.

Research output: Contribution to journalArticle

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