Miniaturized Patch Antenna With Enhanced Bandwidth Based on Signal-Interference Feed

Shi, Suyang; Che, Wenquan; Yang, Wanchen; Xue, Quan

doi:10.1109/lawp.2014.2360848

Cited by 25 publications

(20 citation statements)

References 12 publications

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“…1. The structure is based on a design of [6]. It consists of a driven element in the form of a microstrip patch fed through the two transmission lines of asymmetrical lengths.…”

Section: Compact Patch Antenna With Enhanced Bandwidth: the Strucmentioning

confidence: 99%

“…The desired feed imbalance is ensured by sliding the tapered junction connected to the feed line. Modifications introduced to the design Cost-Efficient Design Optimization of Compact Patch Antennas with Improved Bandwidth Adrian Bekasiewicz, and Slawomir Koziel, Senior Member, IEEE P of [6] include folding of the parasitic element and introducing inset feeds on both sides of the patch. The former helps maintaining the geometry compactness, whereas the latter ensures better control of the impedance matching of the microstrip patch [1].…”

Section: Compact Patch Antenna With Enhanced Bandwidth: the Strucmentioning

confidence: 99%

“…There has been considerable research effort observed towards reducing the size of patch antenna structures as well as enhancing their bandwidth. The techniques utilized for antenna miniaturization include adding a shorting wall along the null in the electric field across the center of the patch [4], adding a shorting pin near the antenna feed [4], or using slots and/or slits [2], [5], as well as folding and meandering [6]. On the other hand, bandwidth enhancement can be realized using impedance matching networks [6], parasitic patches on the top of the main patch [5], and various modifications of the radiator shape (circle, ellipse, triangle, trapezoidal [1], etc.…”

Section: Introductionmentioning

confidence: 99%

“…Also, for the sake of reliability, the design process has to be conducted using high-fidelity electromagnetic (EM) simulations, which is computationally expensive. Consequently, the design process is normally realized through parameters sweeps [2], [6]. This is laborious and does not ensure finding truly optimum antenna dimensions.…”

Section: Introductionmentioning

confidence: 99%

“…For further reduction of the design cost, the optimization process is adaptively controlling the number of geometry parameters involved (with the selection based on the initial sensitivity analysis). Our approach is demonstrated using a patch antenna proposed in [6] and modified by introducing inset feeds and folded parasitic radiator in order to provide additional degrees of freedom. The antenna optimized using our approach exhibits 29% bandwidth and a compact size of 645 mm 2 .…”

Section: Introductionmentioning

confidence: 99%

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Cost-Efficient Design Optimization of Compact Patch Antennas With Improved Bandwidth

Bekasiewicz

Koziel

2016

Antennas Wirel. Propag. Lett.

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In this letter, a surrogate-assisted optimization procedure for fast design of compact patch antennas with enhanced bandwidth is presented. The procedure aims at addressing a fundamental challenge of the design of antenna structures with complex topologies, which is simultaneous adjustment of numerous geometry parameters. The latter is necessary in order to find a truly optimum design and cannot be executed-at the level of high-fidelity electromagnetic (EM)-simulation models-using conventional numerical optimization procedures due to prohibitive computational cost. Here, we employ coarse-discretization EM simulations as faster representation of the antenna under design (referred to as a lowfidelity model). The low-fidelity model is enhanced using a combination of frequency scaling and response correction techniques. Frequency scaling is particularly suitable for reducing misalignment between EM models of various fidelities in case of narrow-band structures. Iterative correction-prediction loop is capable to identify an optimum design at a reasonably low computational cost while adjusting all relevant geometry parameters at the same time. For the sake of illustration we consider a modified patch antenna based on transversal signal-interference feed and additional slots in the radiator. Upon optimization, the antenna provided 29% bandwidth while maintaining a compact footprint of 645 mm 2 . Experimental validation is also provided.Index Terms-EM-driven design, patch antennas, bandwidth enhancement, surrogate-based optimization, compact antennas.

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“…1. The structure is based on a design of [6]. It consists of a driven element in the form of a microstrip patch fed through the two transmission lines of asymmetrical lengths.…”

Section: Compact Patch Antenna With Enhanced Bandwidth: the Strucmentioning

confidence: 99%

Section: Compact Patch Antenna With Enhanced Bandwidth: the Strucmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Cost-Efficient Design Optimization of Compact Patch Antennas With Improved Bandwidth

Bekasiewicz

Koziel

2016

Antennas Wirel. Propag. Lett.

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Gain Enhancement of Composite Photonic Crystal Microstrip Patch Antenna Inspired by Maxwell Garnett Model for C‐Band, X‐Band and Ku Band Applications

Mercy,

Wilson

2023

Cryst. Res. Technol.

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The latest developments in communication systems require an economical, light‐weight, compact size, and excellent performance in microstrip patch antennas in order to meet the requirements of the upcoming implementation. The optical, electrical, and physical properties of different materials have an impact on the design of antennas. An innovative composite photonic crystal microstrip patch antenna with outstanding gain has been developed. For composites of fumed silica embedded in RT‐Duroid dielectric material, the effective permittivity is calculated using the Maxwell‐Garnett model. The performance of composite antennas for different volume fractions and various dielectric substrate thicknesses is studied. The resonance frequencies of composites also shift from the X‐band to the C‐band with an increase in volume concentration, which is suitable for wireless communication systems. This investigation provides a perspective on how composite substrates can represent a communication revolution by providing an alternative to substrates that are readily accessible commercially in situations when the material qualities are insufficient. The photonic crystal composite antenna records the highest gain of 13.89 dB with the coverage of C‐band, X‐band, and Ku‐band, whereas the composite antenna reaches the best gain of 10 dB with the coverage of C‐band and X‐band.

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Precise control of reflection response in bandwidth-enhanced planar antennas

Bekasiewicz

Koziel

2016

Int J RF and Microwave Comp Aid Eng

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In this work, the issues of bandwidth enhancement of planar antennas and the relevance of precise and automated response control through numerical optimization have been investigated. Using an example of a planar antenna with parasitic radiator we illustrate possible effects of even minor modifications of the antenna geometry (here, applied to the ground plane) on its reflection performance. In particular, a proper handling of geometry parameters may lead to considerable broadening of the antenna bandwidth. For the sake of computational efficiency, the adjustment of geometry parameters is carried out using surrogate‐based optimization methods exploiting coarse‐discretization EM simulations as the underlying low‐fidelity antenna model. Additionally, suitably defined penalty function allows us to precisely control the maximum in‐band reflection so that sufficient margin to accommodate possible manufacturing tolerances can be achieved. The optimized designs of the two antenna structures considered in this work exhibit over 1.75 GHz (>31%) and 2.15 GHz (>38%) bandwidth, respectively, for the center frequency of 5.6 GHz. Simulation results are validated using measurements of the fabricated prototypes. Comparison with state‐of‐the‐art designs is also provided. © 2016 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:653–659, 2016.

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Miniaturized Patch Antenna With Enhanced Bandwidth Based on Signal-Interference Feed

Cited by 25 publications

References 12 publications

Cost-Efficient Design Optimization of Compact Patch Antennas With Improved Bandwidth

Cost-Efficient Design Optimization of Compact Patch Antennas With Improved Bandwidth

Gain Enhancement of Composite Photonic Crystal Microstrip Patch Antenna Inspired by Maxwell Garnett Model for C‐Band, X‐Band and Ku Band Applications

Precise control of reflection response in bandwidth-enhanced planar antennas

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