Electromagnetically-coupled multiple square rings for multi-frequency operation

Latif, Saeed I.; Shafai, L.

doi:10.1109/aps.2009.5171890

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…In [11,12] capacitive feeding was used in a multi-band ring stacked configuration obtaining narrow bandwidths. In [13] a circular parasitic patch was suspended above an annular-ring to enhance the impedance matching and bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Circularly-Polarized Stacked Annular-Ring Microstrip Antenna

Ramírez¹,

Parrón²

2011

PIER Letters

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Abstract-In this paper, we propose the aperture feeding as a technique for bandwidth enhancement of multi-band microstrip ring antennas. In particular, we present a dual-band stacked annularring microstrip antenna fed by four bow-tie apertures with circular polarization. Furthermore, we show that the size and shape of the substrate that supports the radiating elements of the antenna plays an important role in the quality of the axial ratio.

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Section: Introductionmentioning

confidence: 99%

Circularly-Polarized Stacked Annular-Ring Microstrip Antenna

Ramírez¹,

Parrón²

2011

PIER Letters

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Sectored annular ring microstrip antenna with DGS for circular polarization

Singh

Gangwar

Kanaujia³

2016

Micro & Optical Tech Letters

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A novel and simple design of circularly polarized sectored annular ring microstrip antenna with coplanar and concentric circular microstrip antenna is presented. The proposed antenna has single microstrip line feed with defected ground structure. Simulation analysis has been carried out using Ansoft High Frequency Structure Simulator (HFSSTM) software and measurement is carried out using the AgilentTM Vector Network Analyser (N5230A:PNA‐L). Parametric analysis of return loss and axial ratio versus frequency for different physical parameter of antenna has been studied. Experimental results of the proposed antenna show the 34.61% impedance bandwidth and 8.08% axial ratio bandwidth at 2.6 GHz center frequency with 6.96 dB peak gain. Simulated results are in good agreement with measured results. Due to low profile and simple geometry, it can be applicable for S‐band application effectively as wireless LAN, Wi‐Fi, Bluetooth, Zig‐Bee, and radio frequency identification antennas. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:569–573, 2016

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Wideband and compact slot loaded annular ring microstrip antenna using L-probe proximity-feed for wireless communications

Singh

Gangwar

Kanaujia³

2015

Int. J. Microw. Wireless Technol.

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A wideband orthogonally slot cut annular ring microstrip antenna fed by L-shaped probe is investigated using modal expansion cavity model and circuit theory approach. Simulation of the proposed antenna is performed using Ansoft HFSS and simulated results are compared with the measured and theoretical results. The impedance bandwidth of about 37.46% is observed at resonant frequency 3.15 GHz. The proposed antenna realizes an improvement in bandwidth of 13.46% and miniaturization in physical dimension about 10% from earlier reported structures. An improvement in bandwidth and miniaturization is due to thick substrate, L-probe feed, and orthogonally loaded slots. The measured results of fabricated antennas are in good agreement with simulated and theoretical results.

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Electromagnetically-coupled multiple square rings for multi-frequency operation

Cited by 4 publications

References 4 publications

Circularly-Polarized Stacked Annular-Ring Microstrip Antenna

Circularly-Polarized Stacked Annular-Ring Microstrip Antenna

Sectored annular ring microstrip antenna with DGS for circular polarization

Wideband and compact slot loaded annular ring microstrip antenna using L-probe proximity-feed for wireless communications

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