Title

A Microstrip Patch Electronically Steerable Parasitic Array Radiator (ESPAR) Antenna With Reactance-Tuned Coupling and Maintained Resonance

Authors

Authors

J. J. Luther; S. Ebadi;X. Gong

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE Trans. Antennas Propag.

Keywords

Beam steering; microstrip antennas; patch antenna; phased arrays; PLANE; Engineering, Electrical & Electronic; Telecommunications

Abstract

A new approach to parasitic phased-array antennas is presented. A symmetric two-layer, single-input inexpensive three-element array at 1-GHz employing varactors as tuning mechanisms are designed, fabricated, and measured. The driven element is mutually coupled to two parasitic elements in the H-plane. The varactors are used to control the mutual coupling and beam scanning and to maintain resonance at 1 GHz. A continuous scanning range of -15 to +15 degrees is measured with maintained impedance matching and radiation pattern integrity. The low cost of diode varactors, used in place of expensive phase shifters, allows for more economic fabrication. This is advantageous to applications in point-to-point communication systems, weather, and target tracking radar systems.

Journal Title

Ieee Transactions on Antennas and Propagation

Volume

60

Issue/Number

4

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

1803

Last Page

1813

WOS Identifier

WOS:000302730500016

ISSN

0018-926X

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