Wave-front adaptive control structure (WACS) for quasi-optical power amplifiers in intelligent RF front-ends

Hao Xin; J. B. Hacker; A. Sailer; G. Nagy; J. A. Higgins; D. Pilz; M. J. Rosker

doi:10.1109/LMWC.2004.832053

Wave-front adaptive control structure (WACS) for quasi-optical power amplifiers in intelligent RF front-ends

Hao Xin, J. B. Hacker, A. Sailer, G. Nagy, J. A. Higgins, D. Pilz, M. J. Rosker

Research output: Contribution to journal › Article

2 Scopus citations

Abstract

Tunable electromagnetic crystal (EMXT) surfaces are used as rectangular waveguide sidewalls to provide uniform excitation for quasi-optical power amplifiers. InP hetero-barrier varactors are monolithically integrated into periodic metal-dielectric structures to realize a reconfigurable EMXT surface that has a tunable resonance frequency from 30 to 45 GHz. Real-time reconfigurable (30-40 GHz) and low-loss quasi-TEM wave-front control with only 2-mm long EMXT waveguide section is demonstrated. Experimental results are in good agreement with design simulations. Such waveguides can be readily integrated into an intelligent RF front-end with self-assessment and self-adjustment capabilities.

Original language	English (US)
Pages (from-to)	404-406
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	14
Issue number	9
DOIs	https://doi.org/10.1109/LMWC.2004.832053
State	Published - Sep 1 2004
Externally published	Yes

Keywords

Electromagnetic crystal (EMXT) surfaces
Hetero-barrier varactors (HBV)
Transverse electromagnetic (TEM)

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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Xin, H., Hacker, J. B., Sailer, A., Nagy, G., Higgins, J. A., Pilz, D., & Rosker, M. J. (2004). Wave-front adaptive control structure (WACS) for quasi-optical power amplifiers in intelligent RF front-ends. IEEE Microwave and Wireless Components Letters, 14(9), 404-406. https://doi.org/10.1109/LMWC.2004.832053

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abstract = "Tunable electromagnetic crystal (EMXT) surfaces are used as rectangular waveguide sidewalls to provide uniform excitation for quasi-optical power amplifiers. InP hetero-barrier varactors are monolithically integrated into periodic metal-dielectric structures to realize a reconfigurable EMXT surface that has a tunable resonance frequency from 30 to 45 GHz. Real-time reconfigurable (30-40 GHz) and low-loss quasi-TEM wave-front control with only 2-mm long EMXT waveguide section is demonstrated. Experimental results are in good agreement with design simulations. Such waveguides can be readily integrated into an intelligent RF front-end with self-assessment and self-adjustment capabilities.",

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AU - Xin, Hao

AU - Hacker, J. B.

AU - Sailer, A.

AU - Nagy, G.

AU - Higgins, J. A.

AU - Pilz, D.

AU - Rosker, M. J.

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