FAST RISETIME InP OSCILLATORS EMPLOYING CAVITY STABILISATION AND PULSED PRIMING TECHNIQUES.

D. C. Smith; R. L. Tebbenham

doi:10.1049/ip-h-1.1981.0039

FAST RISETIME InP OSCILLATORS EMPLOYING CAVITY STABILISATION AND PULSED PRIMING TECHNIQUES.

D. C. Smith, R. L. Tebbenham

Research output: Contribution to journal › Article › peer-review

Abstract

A high-peak-power short-pulse-length J-band (10-20 GHz) oscillator using high-efficiency InP devices is described. The circuit techniques employed enable simultaneous satisfaction of the conflicting requirements of a well defined fast rf risetime and extremely good frequency stability during the pulse. Incoherent phase-priming and cavity stabilization techniques are described. A theoretical treatment is given on the problem of cavity stabilization techniques for chirp suppression in pulsed oscillators using resonant structures coupled into the output transmission line. For a given pulse length, there exists an optimum value of cavity Q-factor to obtain maximum chirp reduction for minimum insertion loss. The design of this cavity is discussed. Implications on device design and processing techniques to minimize transient thermal impedance are outlined.

Original language	English
Pages (from-to)	229-235
Number of pages	7
Journal	IEE Proceedings H: Microwaves Optics and Antennas
Volume	128
Issue number	5
DOIs	https://doi.org/10.1049/ip-h-1.1981.0039
State	Published - 1981
Externally published	Yes

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AB - A high-peak-power short-pulse-length J-band (10-20 GHz) oscillator using high-efficiency InP devices is described. The circuit techniques employed enable simultaneous satisfaction of the conflicting requirements of a well defined fast rf risetime and extremely good frequency stability during the pulse. Incoherent phase-priming and cavity stabilization techniques are described. A theoretical treatment is given on the problem of cavity stabilization techniques for chirp suppression in pulsed oscillators using resonant structures coupled into the output transmission line. For a given pulse length, there exists an optimum value of cavity Q-factor to obtain maximum chirp reduction for minimum insertion loss. The design of this cavity is discussed. Implications on device design and processing techniques to minimize transient thermal impedance are outlined.

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FAST RISETIME InP OSCILLATORS EMPLOYING CAVITY STABILISATION AND PULSED PRIMING TECHNIQUES.

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