Broad-band cavity-backed and capacitively probe-fed microstrip patch arrays

Aza, Miguel Á. González de; Zapata, J.; Encinar, José A.

doi:10.1109/8.855498

Cited by 36 publications

(13 citation statements)

References 13 publications

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“…When patch antennas are employed in array environments, the surface waves that are generated (the more so in the case of stacked-patches antennas) have a detrimental effect of the antenna's efficiency, especially at large scanning angles [12]. The most adequate solution to the suppression of the surface waves is to place the radiating patch(es) in a metallic cavity [13]- [15]. Note that this solution also contributes to the reduction of the mutual coupling between elements.…”

Section: A the Choice For The Type Of Primary Radiatormentioning

confidence: 99%

“…Note that this solution also contributes to the reduction of the mutual coupling between elements. For feeding such radiators, either protruding probes [8], [14], [15] or an aperture coupling [10] have been proposed. While the latter option is generally considered to ensure a wider operational bandwidth, the former provides a better isolation between the channels and a more direct access to individual elements, that is essential for measurement purposes (a highly relevant aspect during the system development phase).…”

Section: A the Choice For The Type Of Primary Radiatormentioning

confidence: 99%

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The Design of Shared Aperture Antennas Consisting of Differently Sized Elements

Coman

Lager

Ligthart

2006

IEEE Trans. Antennas Propagat.

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Abstract-A consistent strategy for the design of finite array antennas consisting of differently sized radiating elements is discussed. In view of increasing the total bandwidth of the antenna system, while maintaining a low mutual coupling between the elementary radiators, sparse subarrays, operating at adjacent frequency ranges, are interleaved on a common (shared) aperture. The sparse architectures are designed using a combinatorial method that ensures an acceptable behavior in the side-lobes region in conjunction with a narrow beamwidth. The effect of the mutual coupling between identical and differently sized elements is accurately evaluated and is accounted for in predicting the performance of each individual radiator. The concept is illustrated by designing a shared aperture antenna consisting of two interwoven subarrays that jointly cover a fractional bandwidth of 14% in the X-band. Cavity-backed, stacked-patches antennas with coaxial feeding are used as elementary radiators.Index Terms-Mode-matching methods, shared aperture, sparse array antennas.

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Section: A the Choice For The Type Of Primary Radiatormentioning

confidence: 99%

Section: A the Choice For The Type Of Primary Radiatormentioning

confidence: 99%

The Design of Shared Aperture Antennas Consisting of Differently Sized Elements

Coman

Lager

Ligthart

2006

IEEE Trans. Antennas Propagat.

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“…To enhance the bandwidth of a patch antenna, several approaches have been proposed previously, such as using a thick substrate with low dielectric constant and multiple resonators [1], parasitic patches stacked on the top of the main patch or close to main patch in the same plane [2], U-shaped slot [3], Lprobe feeding [4], lossy materials [5], a capacitively probe fed structure [6], a 3-D transition microstrip feed line [7] and a planar monopole antenna fed by a coplanar waveguide (CPW) [8][9][10][11]. Radiating elements patches of printed antennas have a variety of forms, triangular, rectangular, square, elliptical, circular, among others [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Radiating elements patches of printed antennas have a variety of forms, triangular, rectangular, square, elliptical, circular, among others [1][2][3][4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A Compact CPW-Fed Planar Pentagon Antenna for Uwb Applications

Touhami¹,

Yahyaoui²,

Zakriti³

et al. 2014

PIER C

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Abstract-In this paper, the design and analysis of a compact coplanar waveguide-fed ultra wideband pentagon antenna are presented. To achieve ultra wideband performance, two modifications are introduced. The first one is to remove a small fan angle on each side of the ground plan, and the second one is to modify the sharp of the patch in the width. The optimal dimensions can be achieved by a parametric analysis. The antenna design exhibits a very wide operating bandwidth of 16.7 GHz with a return loss better than 10 dB in the frequency range from 4.46 GHz to 21.14 GHz. The gain of the proposed antenna is 6.3 dBi. This antenna configuration will be useful for UWB indoor application as it is easy to fabricate and integrate with RF circuitry. All simulations in this work were carried out by using the electromagnetic software CST.

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“…In order to enhance the bandwidth of a patch antenna several approaches have been proposed previously, such as using: a thick substrate with low dielectric constant and multiple resonators [5], parasitic patches stacked on the top of the main patch or close to main patch in the same plane [6], Ushaped slot [7], L-probe feeding [8], lossy materials [9], a capacitively probe fed structure [10], and a 3-D transition microstrip feed-line [11].…”

Section: Introductionmentioning

confidence: 99%

Printed wideband CPW-fed slot antenna with high polarization purity

Bayderkhani

Dadashzadeh

2010

IEICE Electron. Express

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This paper introduces a novel compact wideband CPWfed slot antenna comprising of an E-shaped patch that is excited with a trident shaped feed-line structure. The antenna design exhibits a very wide operating bandwidth of over 168% with S 11 < −10 dB in the frequency range 1.6 to 18.9 GHz. The antenna's radiation characteristics are stable across this wide bandwidth. The proposed antenna exhibits high polarization purity with cross-polarization level that is well below −40 dB. A comprehensive parametric study was carried out to get insight on the effects of various antenna parameters that enable optimization of the antenna's performance. This antenna easily fulfills the requirements for ultra-wideband (UWB) wireless communication systems as specified by FCC over the designated band 3.1 GHz-10.6 GHz. Keywords: slot antenna, UWB, CPW-fed Classification: Microwave and millimeter wave devices, circuits, and systems Lett., vol. 22, no. 5, pp. 348-349, Sept. 1999. [7] T. Huynh and K. F. Lee, "Single-layer single-patch wideband microstrip antenna," Electron. Lett., vol. 31, no. 16, pp. 1310-1312, Aug. 1995

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Broad-band cavity-backed and capacitively probe-fed microstrip patch arrays

Cited by 36 publications

References 13 publications

The Design of Shared Aperture Antennas Consisting of Differently Sized Elements

The Design of Shared Aperture Antennas Consisting of Differently Sized Elements

A Compact CPW-Fed Planar Pentagon Antenna for Uwb Applications

Printed wideband CPW-fed slot antenna with high polarization purity

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