An Optimized Wideband Quarter-Wave Patch Antenna Design

Sun, Shi-Hai; Man, K.F.; Wang, B.-Z.; Wong, T.P.

doi:10.1109/lawp.2005.862063

Cited by 9 publications

(6 citation statements)

References 4 publications

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“…3, the broadside radiation pattern of the MPA shows almost zero beam tilt with the antenna boresight at 0 ∘ , whereas the radiation of the QW-SPA has a beam tilt of around 20 ∘ in the E-plane. The beam tilt from the QW-SPA can also be validated from various designs [14,15]. The beam tilt in the E-plane can be attributed to the shorting wall, which acts as a reflector placed a quarter-wavelength away from the radiating edge.…”

Section: A Evolution and Working Principle Of The Single-patch Aip De...mentioning

confidence: 95%

Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

Magray

Tarng

2022

IEEE Access

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A low-profile, wideband antenna-in-package (AiP) design is proposed for 5G mmWave mobile applications. The aperture-coupled feeding incorporated with the microstrip feed line through the slots in the ground is used to excite the patch antenna. Firstly, a thin quarter-wave shorted patch antenna (QW-SPA) with the dominant 𝑇𝑀 1/2,0,0 𝑧 mode is realized. To broaden the operating band, the QW-SPA is extended along its resonant length so that the 𝑇𝑀 1,0,0 𝑧 mode can also be excited. The offset introduced into the two slots together with the additional shorting via wall are applied to enhance the beam tilt toward the end-fire direction. The proposed single-patch design shows a wide fractional bandwidth, covering the 5G mmWave band n257 (26.5-29.5 GHz). Furthermore, to increase more beam tilt, the differential-fed, two-patch sub-array formed by two QW-SPAs spaced a half-wavelength at 28 GHz apart is also presented. Compared with the singlepatch design, the beam-tilt enhancement of around 10-27 degrees is obtained over the desired frequency band with the peak gain of around 8.2 dBi for the sub-array AiP design.INDEX TERMS patch antennas, antenna-in-package (AiP), fifth generation (5G) antennas, mmWave, beam tilt, thin quasi-end-fire antennas, aperture-coupled feed, differential feed

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Section: A Evolution and Working Principle Of The Single-patch Aip De...mentioning

confidence: 95%

Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

Magray

Tarng

2022

IEEE Access

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“…The radiated power is smooth over the wide frequency band. (4) In order to make the radiated power keeping constant over the whole frequency band, another objective function to minimize the fluctuation of the antenna gain is defined as follow: f5 = min{,max(Gain(f)) -min(Gain(f))} (5) where Gain(J) is the gain of the antenna at frequencyf The details of executing the JGGA can be found in [5][6]. A computing program based on the JGGA has been developed for searching the required nondominated solutions.…”

Section: Antenna Structure and Optimizationmentioning

confidence: 99%

“…Many parameters of an antenna can affect its performance, and then it is very difficult by using the traditional trial and error method to tune the parameters to obtain good results. Genetic Algorithms (GA) have been used to get optimum solutions in designing antennas, microwave circuits and other wireless communication systems [3][4]. Jumping Genes Genetic Algorithm (JGGA) is a newly developed MultiObjective Evolutionary Algorithm (MOEA) and is suitable to solve multi-objective problems.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wideband Planar Antenna Optimized by a Multi-Objective Evolutionary Algorithm

Yang

Man

Yeung

et al. 2007

2007 Asia-Pacific Microwave Conference

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An ultra-wideband (UWB) planar antenna optimized by a newly developed Multi-Objective Evolutionary Algorithm-Jumping Genes Genetic Algorithm (JGGA) is proposed. The optimization procedure aims at finding an antenna not only with low voltage standing wave ratio (VSWR) and small size, but also with stable radiation pattern over the wide band. There are five objective functions and they are based on VSWR, antenna size, radiation pattern and gain. Both the simulated and measured results are given and they agree well with each other.

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“…They are usually utilized at ultra-high frequency (UHF) and higher frequencies because the size of the antenna is directly tied to the wavelength at the resonant frequency. It had been generally applied in wireless communication system [2], [3].…”

Section: Microstrip Antennamentioning

confidence: 99%

Design and Analysis of Equilateral Triangular Single Patch Antenna with Side Length 8cm

Song

Chin

Bong

et al. 2006

2006 International RF and Microwave Conference

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An Optimized Wideband Quarter-Wave Patch Antenna Design

Cited by 9 publications

References 4 publications

Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

Differential-Fed, Dual-Aperture Based, Quasi-End-Fire 5G mmWave Antenna-in-Package Design

Ultra-Wideband Planar Antenna Optimized by a Multi-Objective Evolutionary Algorithm

Design and Analysis of Equilateral Triangular Single Patch Antenna with Side Length 8cm

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