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Title: Experimental investigation of layer displacements for a singly-fed circularly polarized stacked patch antenna
Authors: Chung, KL
Mohan, AS
Keywords: Axial-ratio bandwidth
Circularly polarized electromagnetically coupled patch (CP-EMCP) antenna
Impedance bandwidth
Layer displacement
Offset patch
Issue Date: 2007
Publisher: Wiley-Blackwell
Source: Microwave and optical technology letters, 2007, v. 49, no. 8, p. 2047-2050 How to cite?
Journal: Microwave and optical technology letters 
Abstract: This article presents experimental investigation on the effect of layer displacements for an X-band circularly polarized patch antenna. Experimental results demonstrate that such antenna makes use of high-low-low dielectric materials combination has tolerant characteristics not just on the impedance bandwidth but also the CP bandwidth to withstand layer displacements. Based on the measured bandwidths, displacement limits are located as 0. 067λ0 for the entire x-y plane. Also, gain variations are found to be insignificant.
ISSN: 0895-2477
EISSN: 1098-2760
DOI: 10.1002/mop.22562
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