CST – Computer Simulation Technology

Title:
Design Method for Wideband Circularly Polarized Slot Antennas
Author(s):
Adam Narbudowicz, Matthias John, Vit Sipal, Xiulong Bao, Max J. Ammann
Source:
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
Vol./Issue/Date:
Vol. 63 No. 10
Year:
2016
Page(s):
pp. 4271 - 4279
Keywords:
Circular polarization, optimization, slot antennas, spline, ultrawideband (UWB) antennas
Abstract:
A compact ultrawideband (UWB) circularly polarized (CP) slot antenna is proposed with a methodology for automated reoptimization for packaging with proprietary devices. The slot structure employs a dual-feed with an integrated compact UWB phase shifter. The design process involves an advanced optimization algorithm and demonstrates the use of spline curves for generation of CP signals. These allow easy optimization, while preserving phase coherency across a wideband. The prototyped antenna has a CP bandwidth of 54% (from 3.2 to 6.1 GHz).
Document:

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