Broad-Band Circularly Polarized Ring-Slot Array Antenna for Simultaneous Use of the Orthogonal Polarizations

Sen FENG; Eisuke NISHIYAMA; Masayoshi AIKAWA

doi:10.1587/transele.E93.C.1105

Broad-Band Circularly Polarized Ring-Slot Array Antenna for Simultaneous Use of the Orthogonal Polarizations

Sen FENG, Eisuke NISHIYAMA, Masayoshi AIKAWA

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A novel broad-band ring-slot array antenna for simultaneous use of orthogonal polarizations is presented in this paper. In this antenna, the broad-band performance is obtained by integrating a 22 ring-slot array antenna and a broad-band π/2 hybrid circuit. The simultaneous use of the right-hand circular polarization (RHCP) and the left-hand circular polarization (LHCP) is achieved using orthogonal feed circuits on three layers. The both-sided MIC technology is effectively employed in forming this type of slot array antenna. Experimental results show that the proposed antenna has good circular polarization characteristics for both the LHCP and the RHCP. The measured impedance-bandwidth of return loss better than -10 dB are about 47% both for the LHCP and the RHCP. The 3 dB axial ratio bandwidths are 25% (RHCP) and 29% (LHCP). The isolation between the two input ports is better than -35 dB at center frequency of 7.5 GHz.

Publication: IEICE TRANSACTIONS on Electronics Vol.E93-C No.7 pp.1105-1110

Publication Date: 2010/07/01

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Online ISSN: 1745-1353

DOI: 10.1587/transele.E93.C.1105

Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies)

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Sen FENG, Eisuke NISHIYAMA, Masayoshi AIKAWA, "Broad-Band Circularly Polarized Ring-Slot Array Antenna for Simultaneous Use of the Orthogonal Polarizations" in IEICE TRANSACTIONS on Electronics, vol. E93-C, no. 7, pp. 1105-1110, July 2010, doi: 10.1587/transele.E93.C.1105.
Abstract: A novel broad-band ring-slot array antenna for simultaneous use of orthogonal polarizations is presented in this paper. In this antenna, the broad-band performance is obtained by integrating a 22 ring-slot array antenna and a broad-band π/2 hybrid circuit. The simultaneous use of the right-hand circular polarization (RHCP) and the left-hand circular polarization (LHCP) is achieved using orthogonal feed circuits on three layers. The both-sided MIC technology is effectively employed in forming this type of slot array antenna. Experimental results show that the proposed antenna has good circular polarization characteristics for both the LHCP and the RHCP. The measured impedance-bandwidth of return loss better than -10 dB are about 47% both for the LHCP and the RHCP. The 3 dB axial ratio bandwidths are 25% (RHCP) and 29% (LHCP). The isolation between the two input ports is better than -35 dB at center frequency of 7.5 GHz.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E93.C.1105/_p

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@ARTICLE{e93-c_7_1105,
author={Sen FENG, Eisuke NISHIYAMA, Masayoshi AIKAWA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Broad-Band Circularly Polarized Ring-Slot Array Antenna for Simultaneous Use of the Orthogonal Polarizations},
year={2010},
volume={E93-C},
number={7},
pages={1105-1110},
abstract={A novel broad-band ring-slot array antenna for simultaneous use of orthogonal polarizations is presented in this paper. In this antenna, the broad-band performance is obtained by integrating a 22 ring-slot array antenna and a broad-band π/2 hybrid circuit. The simultaneous use of the right-hand circular polarization (RHCP) and the left-hand circular polarization (LHCP) is achieved using orthogonal feed circuits on three layers. The both-sided MIC technology is effectively employed in forming this type of slot array antenna. Experimental results show that the proposed antenna has good circular polarization characteristics for both the LHCP and the RHCP. The measured impedance-bandwidth of return loss better than -10 dB are about 47% both for the LHCP and the RHCP. The 3 dB axial ratio bandwidths are 25% (RHCP) and 29% (LHCP). The isolation between the two input ports is better than -35 dB at center frequency of 7.5 GHz.},
keywords={},
doi={10.1587/transele.E93.C.1105},
ISSN={1745-1353},
month={July},}

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TY - JOUR
TI - Broad-Band Circularly Polarized Ring-Slot Array Antenna for Simultaneous Use of the Orthogonal Polarizations
T2 - IEICE TRANSACTIONS on Electronics
SP - 1105
EP - 1110
AU - Sen FENG
AU - Eisuke NISHIYAMA
AU - Masayoshi AIKAWA
PY - 2010
DO - 10.1587/transele.E93.C.1105
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E93-C
IS - 7
JA - IEICE TRANSACTIONS on Electronics
Y1 - July 2010
AB - A novel broad-band ring-slot array antenna for simultaneous use of orthogonal polarizations is presented in this paper. In this antenna, the broad-band performance is obtained by integrating a 22 ring-slot array antenna and a broad-band π/2 hybrid circuit. The simultaneous use of the right-hand circular polarization (RHCP) and the left-hand circular polarization (LHCP) is achieved using orthogonal feed circuits on three layers. The both-sided MIC technology is effectively employed in forming this type of slot array antenna. Experimental results show that the proposed antenna has good circular polarization characteristics for both the LHCP and the RHCP. The measured impedance-bandwidth of return loss better than -10 dB are about 47% both for the LHCP and the RHCP. The 3 dB axial ratio bandwidths are 25% (RHCP) and 29% (LHCP). The isolation between the two input ports is better than -35 dB at center frequency of 7.5 GHz.
ER -