NDLI: Dual-Polarization Cylindrical Long-Slot Array (CLSA) Antenna Integrated With Compact Broadband Baluns and Slot Impedance Transformers

Content Provider	IEEE Xplore Digital Library
Author	Rayno, J. Celik, N. Iskander, M.F.
Copyright Year	2002
Abstract	In this letter, a realistic method for feeding the dual-polarized cylindrical long-slot array (CLSA) antenna is presented. A compact lumped-element balun with 2.5:1 bandwidth is designed, fabricated, measured, and used for feeding the dipole-mode, while a compact microstrip coupled-line impedance transformer is used for feeding the slot mode of the antenna. Simulation results of these feeds are compared to experimental measurements, and the overall performance of the dual-polarized CLSA antenna with these feeds is also simulated. Simulation results agree with measured data, and it is shown that this antenna has the capability of achieving four polarization modes [vertical, horizontal, left-handed circular polarization (LHCP), right-handed circular polarization (RHCP)]. The gain over 225-450 MHz ranges from -1.42 to -3.15 dBi for the dipole mode, -0.44 to -2.24 dBi for the slot mode, -1.76 to -2.70 dBic for the LHCP mode, and -1.80 to -2.68 dBic for the RHCP mode.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	1384
Ending Page	1387
Page Count	4
File Size	943078
File Format	PDF
ISSN	15361225
Volume Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dipole antennas Impedance Impedance matching Slot antennas Broadband antennas Antenna feeds lumped-element balun Broadband antenna connected array long-slot array
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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