TY - JOUR
T1 - Miniaturized Circularly Polarized Square Slot Antenna with Enhanced Axial-Ratio Bandwidth Using an Antipodal Y-strip
AU - Nosrati, Mehrdad
AU - Tavassolian, Negar
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2017
Y1 - 2017
N2 - A novel single-fed, wideband, circularly polarized slot antenna is proposed and fabricated. Wideband circular polarization is obtained by introducing an antipodal Y-strip to a square slot antenna. The feedline is a U-shaped microstrip line that provides a wide impedance bandwidth. The overall size of the antenna is only 28 × 28 mm2 (0.3 λo × 0.3 λo). A prototype of the antenna is fabricated and tested. The measured bandwidths for the axial ratio (AR <; 3 dB) and relative impedance (|S11 | <;-10 dB) are 41.3% (from 4.4 to 6.67 GHz) and 84% (from 3.25 to 8 GHz), respectively, and the antenna has a stable radiation pattern and a gain of greater than 3 dBi over the entire circular polarization frequency band.
AB - A novel single-fed, wideband, circularly polarized slot antenna is proposed and fabricated. Wideband circular polarization is obtained by introducing an antipodal Y-strip to a square slot antenna. The feedline is a U-shaped microstrip line that provides a wide impedance bandwidth. The overall size of the antenna is only 28 × 28 mm2 (0.3 λo × 0.3 λo). A prototype of the antenna is fabricated and tested. The measured bandwidths for the axial ratio (AR <; 3 dB) and relative impedance (|S11 | <;-10 dB) are 41.3% (from 4.4 to 6.67 GHz) and 84% (from 3.25 to 8 GHz), respectively, and the antenna has a stable radiation pattern and a gain of greater than 3 dBi over the entire circular polarization frequency band.
KW - Antipodal Y-strip
KW - circular polarization
KW - slot antennas
KW - wideband antennas
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U2 - 10.1109/LAWP.2016.2605099
DO - 10.1109/LAWP.2016.2605099
M3 - Article
AN - SCOPUS:85027497334
SN - 1536-1225
VL - 16
SP - 817
EP - 820
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
ER -