Analysis of offset dual-patch microstrip antenna

Au, T.M.; Tong, Kin‐Fai; Luk, Kwai Man

doi:10.1049/ip-map:19941545

Cited by 8 publications

(4 citation statements)

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“…However, it suffers from the narrow impedance bandwidth. The feeding methods that have been reported in connection with stacked patched are coaxial probe [2], [3] and strip line through an aperture [4], [5].The disadvantage of a coaxial feed is that the patch and surrounding material must be physically drilled and soldered at the feed point. The disadvantage of aperture coupling is the relatively high back lobe radiation.…”

Section: Introductionmentioning

confidence: 99%

Proximity coupled stacked circular disc microstrip antenna with reduced size and enhanced bandwidth using DGS for WLAN/WiMAX applications

Prajapati

Kartikeyan

2012

2012 IEEE Students' Conference on Electrical, Electronics and Computer Science

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A compact proximity fed stacked circular disc microstrip antenna (SCDMA) with dumbbell shaped circular head DGS has been proposed in this work. Proposed DGS structure enhances bandwidth by 204%, reduced average area of both circular patches by 58%, increases radiation efficiency by 30.7% and also improves VSWR by 17%. The simulated antenna exhibits 6.24 dB gain at 5.53 GHz operating frequency and has bandwidth 5.20 to 5.94 GHz, which satisfy two licensed bands (5.25-5.85 GHz); (5.725-5.8 GHz). These bands are suitable for WLAN and WiMAX applications respectively. This paper includes 2D radiation patterns with E plane and H plane, VSWR and return loss of SCDMA with DGS structure. The design and optimization of SCDMA with and without DGS were carried using CST Microwave Studio V.9.

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Section: Introductionmentioning

confidence: 99%

Proximity coupled stacked circular disc microstrip antenna with reduced size and enhanced bandwidth using DGS for WLAN/WiMAX applications

Prajapati

Kartikeyan

2012

2012 IEEE Students' Conference on Electrical, Electronics and Computer Science

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“…Offset dual-and tri-patch configurations are studied in [13]- [15] for broadband operation. However, in this paper, a closer look at the polarization is given for the off-centered dual and triple stacked rings, and a detailed study is conducted to understand the effects of substrate parameters on their resonances in Section II.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the EM-Coupled Stacked Square Ring Antennas With Ultra-Thin Spacing

Latif

Shafai

2011

IEEE Trans. Antennas Propagat.

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Stacked electromagnetically coupled square ring antennas with extremely thin spacing are studied. The separation between rings is kept very small so that they do not increase the overall antenna height, yet can provide multiband operation. The coupling effects among these very closely placed rings are studied based on substrate parameters so that they can be practically implemented using commercially available microwave substrates. It is observed that with an asymmetric arrangement of the stacked rings, different polarizations can be obtained for different resonances. However, if a fixed polarization is desired, a concentric stacked rings configuration has to be used. Experimental investigations are conducted to confirm simulation results.Index Terms-Microstrip antennas, microstrip ring antennas, polarization, stacked microstrip ring antennas.

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“…A popular method is the use of parasitic patches, either in another layer (stacked geometry) [4] or in the same layer (coplanar geometry). However, the stacked geometry has the disadvantage of increasing the thickness of the antenna, and the coplanar geometry has the disadvantage of increasing the lateral size of the antenna [5]. Most microstrip-fed structures of the printed slot antenna have been used by making the microstrip-fed structures [5] across the center of slot [7], [8].…”

Section: Introductionmentioning

confidence: 99%

“…However, the stacked geometry has the disadvantage of increasing the thickness of the antenna, and the coplanar geometry has the disadvantage of increasing the lateral size of the antenna [5]. Most microstrip-fed structures of the printed slot antenna have been used by making the microstrip-fed structures [5] across the center of slot [7], [8]. The conventional center-fed transverse slot antennas have a large value of radiation impedance, so that it is very difficult to match in practice.…”

Section: Introductionmentioning

confidence: 99%

Wide-Band T-Shaped Microstrip-Fed Twin-Slot Array Antenna

Jang¹

2001

ETRI J

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A numerical simulation and an experimental implementation of T‐shaped microstrip‐fed printed slot array antenna are presented in this paper. The proposed antenna with relative permittivity 4.3 and thickness 1.0mm is analyzed by the finite‐difference time‐domain (FDTD) method. The dependence of design parameters on the bandwidth characteristics is investigated. The measured bandwidth of twin‐slot array antenna is from 1.37 GHz to 2.388 GHz, which is approximately 53.9 % for return loss less than or equal to ‐10 dB. The bandwidth of twin‐slot is about 1.06 % larger than that of single‐slot antenna. The measured results are in good agreement with the FDTD results.

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Analysis of offset dual-patch microstrip antenna

Cited by 8 publications

References 0 publications

Proximity coupled stacked circular disc microstrip antenna with reduced size and enhanced bandwidth using DGS for WLAN/WiMAX applications

Proximity coupled stacked circular disc microstrip antenna with reduced size and enhanced bandwidth using DGS for WLAN/WiMAX applications

Investigation on the EM-Coupled Stacked Square Ring Antennas With Ultra-Thin Spacing

Wide-Band T-Shaped Microstrip-Fed Twin-Slot Array Antenna

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