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 › peer-review

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

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.",

keywords = "Electromagnetic crystal (EMXT) surfaces, Hetero-barrier varactors (HBV), Transverse electromagnetic (TEM)",

author = "Hao Xin and Hacker, {J. B.} and A. Sailer and G. Nagy and Higgins, {J. A.} and D. Pilz and Rosker, {M. J.}",

note = "Funding Information: Manuscript received November 24, 2003; revised April 8, 2004. This work was supported by the U.S. Army Research Laboratory under Contract DAAD17-02-C-0096. The review of this letter was arranged by Associate Editor A. Stelzer. J. B. Hacker, A. Sailer, G. Nagy, and J. A. Higgins are with the Rockwell Scientific Company, Thousand Oaks, CA 91360 USA. H. Xin is with the Raytheon Company, Tucson, AZ 85734 USA (e-mail: hao_xin@raytheon.com). D. Pilz is now with the European Aeronautic Defence and Space Company (EADS), Dresden 01101, Germany. M. J. Rosker is now with the Defense Advanced Research Projects Agency/Microsystems Technology Office (DARPA/MTO), Arlington, VA 22203 USA. Digital Object Identifier 10.1109/LMWC.2004.832053",

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language = "English (US)",

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issn = "1531-1309",

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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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N2 - 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.

AB - 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.

KW - Electromagnetic crystal (EMXT) surfaces

KW - Hetero-barrier varactors (HBV)

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

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Keywords

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