ARTICLES

A Broadband, Four-bit, Ka-band MMIC Phase Shifter

Introduction to the design, fabrication and measurement of a broadband, four-bit, GaAs phase shifter at Ka-band frequencies
Technical Feature A Broadband, Four-bit, Ka-band MMIC Phase Shifter A compact, robust and broadband, four-bit, Ka-band phase shifter was designed and fabricated in a standard 0.25 m m PHEMT GaAs process. Design trade-offs, simulation versus measured results and architectures for the various bits to achieve broadband performance are discussed....
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Power Efficient MMIC Frequency Triplers

Presentation of an approach to optimize the power efficiency of an MMIC frequency tripler
TECHNICAL FEATURE Power Efficient MMIC Frequency Triplers The design of an efficient frequency tripler for an S-/X-band communications receiver is described. An approach for optimizing the tripler for best power efficiency is presented. The tripler topology consists of the harmonic generator circuit, a bandpass filter and an amplifier. A...
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