Circularly Polarized Slotted Waveguide Array With Improved Axial Ratio Performance
نویسندگان
چکیده
منابع مشابه
Wideband Circularly Polarized Square Slot Array Fed by Slotted Waveguide for Satellite Communication
A wideband circularly polarized (CP) slot array with high radiation efficiency is proposed. The cavity-backed square slots are designed to achieve wideband CP radiation with a unidirectional pattern. The slotted waveguide is adopted to feed the array with high efficiency. The square slot, cavity and feeding slot in the waveguide can be viewed as a radiating element. A CP slot array can be conve...
متن کاملNovel Circularly Polarized Substrate Integrated Waveguide SLOT Antanna
Circularly-polarized antenna is built based on a new SIW (substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (RHCP) and fabricated in two separate layers. A broadband impedancebandwidth of 13.9% and a RHCP a...
متن کاملBroadband Circularly Polarized Slotted Patch Antenna Loaded with Short Pins
In this letter, a design for broadband circularly slotted patch antenna fabricated on a singlelayered printed circuit board (PCB) with unidirectional radiation is described. It is fed by a simple center-fed feeding scheme. Unlike conventional slotted patch antennas, the proposed antenna is loaded with four short pins such that both matching and axial-ratio (AR) bandwidths are improved. In addit...
متن کاملWideband Circularly Polarized Uhf Rfid Reader Antenna with High Gain and Wide Axial Ratio Beamwidths
A broadband circularly polarized patch antenna with high gain and wide axial ratio beamwidths is proposed for ultra-highfrequency (UHF) RF identification (RFID) applications in this paper. The antenna is composed of a square patch, a feed network printed on the bottom side of the substrates and an antenna radome. The CP radiation of the proposed antenna is excited by four cylinder probes which ...
متن کاملDual-band Circularly Polarized Antenna with Low Wide-angle Axial-ratio for Tri- Band Gps Applications
This paper presents the design of a dual-band microstrip antenna with low wide-angle axial-ratio. The antenna is designed for global positioning satellite operations at 1227MHz (L2), 1575 MHz (L1) and 1176 MHz (L5, available after 2007). This antenna has another advantage of a much wider band in both VSWR and 3 dB axial-ratio compared with single-fed GPS antennas. Details of the design, simulat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Antennas and Propagation
سال: 2016
ISSN: 0018-926X,1558-2221
DOI: 10.1109/tap.2016.2586492