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Journal ArticleDOI

Axial-ratio bandwidth enhancement of asymmetric-CPW-fed circularly-polarised square slot antenna

J.-Y. Sze, +2 more
- 28 Aug 2008 - 
- Vol. 44, Iss: 18, pp 1048-1049
TLDR
In this article, a broadband circularly-polarized (CP) square slot antenna fed by an asymmetric coplanar waveguide (CPW) from a corner of the slot is proposed.
Abstract
A novel broadband circularly-polarised (CP) square slot antenna fed by an asymmetric coplanar waveguide (CPW) from a corner of the slot is proposed. A CP bandwidth larger than 10% can be attained simply by using an inverted-L tuning stub protruded from the signal line of the CPW. With an additional pair of grounded strips implanted in the slot, the 3 dB axial-ratio bandwidth and the VSWR les 2 impedance bandwidth can be greatly raised to be as high as 30 and 35%, respectively.

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Citations
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Journal ArticleDOI

A Novel Simple and Compact Microstrip-Fed Circularly Polarized Wide Slot Antenna With Wide Axial Ratio Bandwidth for C-Band Applications

TL;DR: In this article, a new compact circularly polarized (CP) slot antenna fed by a microstrip feedline was proposed, which is suitable for circular polarization applications in C band.
Journal ArticleDOI

Broadband CPW-Fed Circularly-Polarized Slot Antenna With an Open Slot

TL;DR: In this paper, a novel broadband CPW-fed circularly-polarized slot antenna with an open slot is presented, which can reach as large as 1000 MHz (27% relative to the center frequency of 3700 MHz) for the 3.3-3.8 GHz WiMAX band.
Journal ArticleDOI

Dual-Band Dual-Sense Circularly Polarized Slot Antenna With a C-Shaped Grounded Strip

TL;DR: In this article, a dual-band coplanar waveguide (CPW)-fed slot antenna with a C-shaped grounded strip is proposed for dual-sense circularly polarized radiation.
Journal ArticleDOI

Wideband Circularly Polarized Cavity-Backed Asymmetric Crossed Bowtie Dipole Antenna

TL;DR: In this article, a single-feed cavity-backed, circularly polarized (CP) antenna is designed for wideband wireless applications, which is made up of asymmetric crossed bowtie dipoles.
Journal ArticleDOI

CPW-Fed S-Shaped Slot Antenna for Broadband Circular Polarization

TL;DR: In this article, a new broadband circularly polarized (CP) printed-slot antenna fed by a coplanar waveguide (CPW) is designed and fabricated and good agreement is achieved between the simulation and measurement, which shows that the presented antenna covers an impedance bandwidth (S11 <; -10 dB) of 104% from 1.78 to 5.64 GHz, and a 3-dB axial-ratio bandwidth (ARBW) of 58.6% from 2.85 to5.21 GHz.
References
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Journal ArticleDOI

Coplanar waveguide-fed square slot antenna for broadband circularly polarized radiation

TL;DR: In this article, a new design of a broadband circularly polarized square slot antenna fed by a single coplanar waveguide (CPW) was proposed and experimentally studied.
Journal ArticleDOI

CPW-fed broadband circularly polarised square slot antenna

TL;DR: In this paper, a novel CPW-fed broadband circularly polarised square slot antenna is proposed and fabricated, which is fed by a widened L-type strip along the diagonal line of the square slot.
Journal ArticleDOI

Microstrip‐fed circular slot antenna for circular polarization

TL;DR: In this article, a printed slot antenna with broadband circular polarization (CP) was presented, which is excited by an L-shaped strip with a taper end, connected in series to a microstrip-line-fed located along the diagonal line of the circular-slot.
Journal ArticleDOI

A circular CPW‐FED slot antenna for broadband circularly polarized radiation

TL;DR: In this paper, a circular slot antenna for obtaining broadband circularly polarized (CP) radiation using a coplanar waveguide (CPW) feed is presented, which is achieved by protruding metallic mono-strip from the circular ground plane towards the slot center at 0° and feeding antenna using a 50-Ω CPW with a protruded single strip at ϕ = 270°.
Journal ArticleDOI

Broadband circularly polarized wide‐slot antenna

TL;DR: In this paper, a new broadband single-fed circularly polarized (CP) wide-slot antenna is presented, which is composed of a wide slot, with a T-shaped stub and a microstrip T-junction.
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