Two-layer five-patch broadband microstrip antennas

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

doi:10.1049/el:19951161

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…The other way to enhance the impedance bandwidth of multilayer antennas is by combining (to combine) the coaxial feed and electromagnetically coupling to stacked microstrip antennas [4][5][6], which demonstrated a maximum measured impedance bandwidth of up to 25.7% [7]. An aperture coupled five-patch multilayer broadband microstrip antenna with air layer has been proposed in [8] and they achieved impedance band width of 44.5% (2.0 VSWR). However, the gain variation of antennas with frequency has not been studied.…”

Section: Introductionmentioning

confidence: 99%

Multi-dielectric layer multi-patches microstrip antenna for UWB applications

Nasimuddin

Chen

See

et al. 2007

2007 European Microwave Conference

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A wideband compact multilayer microstrip antenna with a new feeding arrangement is presented for ultra-wideband (UWB) applications. The antenna consists of a driven patch radiator and 5 stacked parasitic radiators. A new feeding technique is proposed to enhance the impedance bandwidth of the antenna structure. The feeding structure consists a via connected to a microstrip line which excites the patch radiator in a broadband manner. In order to achieve UWB performance, parasitic patches are electromagnetically coupled to the driven patch in the multilayered microstrip structures. The proposed antenna has a measured 10-dB return loss bandwidth of 48% and directional radiation, which covers the lower UWB band very well. The maximum gain is more than 6.5 dBi across the bandwidth. Furthermore, the proposed broadband structure can be deployed in a space-limited environment and multi-dielectric layer antenna applications.

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Section: Introductionmentioning

confidence: 99%

Multi-dielectric layer multi-patches microstrip antenna for UWB applications

Nasimuddin

Chen

See

et al. 2007

2007 European Microwave Conference

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“…Experimental results show that, with the use of an inexpensive FR4 substrate of thickness 1.6 mm and relative permittivity 4.4, such an antenna can have an impedance bandwidth of about 12.7% [52], which is about 6.35 times that of the antenna with a driven patch only (about 2%). The parasitic patches can be stacked on top of the microstrip antenna [53,54] and significant bandwidth enhancement can be achieved.…”

Section: Broadband Microstrip Antennasmentioning

confidence: 99%

Chapter One Introduction and overview

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Guardians of the Humanist Legacy: The Classicism of T.S. Eliot's ≪i>Criterion

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Microstrip Antennas, Broadband
Luk
¹
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Mak
²
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Wong
³

et al. 2005
Encyclopedia of RF and Microwave Engineering
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With <1% in bandwidth, the first microstrip patch antenna has limited applications, mainly for defense purposes. With tremendous effort dedicated to the bandwidth enhancement of microstrip antennas, they are now becoming the most popular antennas selected for modern wireless communications. This article collects different approaches for enhancing the bandwidth of microstrip antennas, including the stacked‐patch, U‐slot patch, and L‐probe coupling techniques. Emphasis is placed on the L‐probe technique, which is demonstrated to be attractive for the development of wideband dual‐polarized patch antennas, and wideband miniature patch antennas for state‐of‐the‐art mobile communications. Throughout the article, design guidelines and principles of operation for most of the designs are highlighted.

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Two-layer five-patch broadband microstrip antennas

Cited by 6 publications

References 3 publications

Multi-dielectric layer multi-patches microstrip antenna for UWB applications

Multi-dielectric layer multi-patches microstrip antenna for UWB applications

Chapter One Introduction and overview

Microstrip Antennas, Broadband

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