A K-band single-chip transmitter

Hirota, Tomoyoshi; Muraguchi, Masahiro

doi:10.1109/gaas.1990.175506

Cited by 9 publications

(1 citation statement)

References 4 publications

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“…The balanced mixer converts the multiplexed video signals up into the Kuband frequencies. It employs a pair of common source FETs and a unique lumped constant balun [4]. The two FETs are driven with anti-phase LO signal.…”

Section: Introductionmentioning

confidence: 99%

GaAs / Si MMICs Synthesized Upconverter for Broadband Tuners in Optical-Fiber CATV Systems

Ohira

Hirota

Hiraoka

et al. 1991

1991 21st European Microwave Conference

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A novel frequency-synthesized upconverter has been developed by implementing GaAs and Si MMICs, and applied to ultra broadband FM-FDM video tuners. The upconverter includes 3 chips of GaAs MMICs: a dualoutput voltage controlled oscillator (VCO), an interstage amplifier and a balanced mixer, as well as 2 chips of Si MMICs: a high speed prescaler and a frequency counter. The measured phase noise is -80 dBcIHz at 1 kHz offset and two-tone intermodulation intercept is +3 dBm. Implementing this upconverter into an FM video tuner, successful performance has been obtained as tuning bandwidth broader than 2 GHz and video weighted S/N ratio of +55 dB. This will possibly be the key device in future video distribution systems through optical fiber networks.

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Section: Introductionmentioning

confidence: 99%