A K-band microstrip phased array radiator for airborne antennas

A K-band microstrip radiator has been developed and prototyped for application in phased arrays for airborne antenna systems. The electrical requirements for the radiator included broad impedance and polarization bandwidths (19.2 - 21.2 GHz) over a full field-of-view scan volume ( /spl plusmn/60/spl...

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Bibliographic Details
Published in2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720) Vol. 2; pp. 897 - 904 Vol.2
Main Authors Hopkins, G.D., Sherman, D.L., Pullen, K.P., Zagrodnick, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2004
Subjects
Azimuth
Bandwidth
Fabrication
Impedance
K-band
Microstrip antenna arrays
Microstrip antennas
Phased arrays
Polarization
Prototypes
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Summary:A K-band microstrip radiator has been developed and prototyped for application in phased arrays for airborne antenna systems. The electrical requirements for the radiator included broad impedance and polarization bandwidths (19.2 - 21.2 GHz) over a full field-of-view scan volume ( /spl plusmn/60/spl deg/ in azimuth and elevation). Mechanical requirements included a thin form factor, fabrication using conventional printed circuit techniques, and direct integration with multilayered feed and control circuitry. This paper presents the design details of the radiator and measured results from prototyped single radiators and a seven-element test array. Computer predicted performance is presented for larger arrays. Presented data includes reflection coefficient and polarization performance versus frequency. GTRI researchers were awarded U.S. Patent 6,466,171 for the design innovations.
ISBN:0780381556
9780780381551
ISSN:1095-323X
2996-2358
DOI:10.1109/AERO.2004.1367689