Broadband Printed Compound Air-Fed Array Antennas

Wu, Zijun; Zhang, Wenxun

doi:10.1109/lawp.2010.2045470

Cited by 46 publications

(31 citation statements)

References 17 publications

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“…P LACING a superstrate in front of an antenna with metal ground plane is capable of improving the antenna s performances, including broadside gain [1]- [21], bandwidth [6]- [8], [12], [13] and so on. This method has been widely utilized, and thus a new name, called resonant cavity antenna (RCA), was proposed for this kind of antenna.…”

Section: Introductionmentioning

confidence: 99%

Effective Reflective Characteristics of Superstrates and Their Effects on the Resonant Cavity Antenna

Chen

Luo

Zheng

et al. 2015

IEEE Trans. Antennas Propagat.

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Aiming at exploring the basic functional mechanism of superstrates in the resonant cavity antenna (RCA), two popular superstrates, i.e. the homogeneous dielectric superstrate and the periodic microstrip superstrate, are investigated. Their reflection coefficients to normal and oblique plane wave incidences are studied by using mathematical derivation and simulations. Based on it, their effects on performances of the RCA are analyzed through simulations and measurements. Results show that, despite of different configurations, the superstrates can be purposely engineered to have the same reflection coefficients, which results in the same improving effect on the RCAs broadside gain, radiation patterns and, more interestingly, broadening effect on the return loss bandwidth. The research demonstrates the key role of their effective reflective characteristics in the RCA, and can inspire more advanced superstrates for RCA designs.

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Section: Introductionmentioning

confidence: 99%

Effective Reflective Characteristics of Superstrates and Their Effects on the Resonant Cavity Antenna

Chen

Luo

Zheng

et al. 2015

IEEE Trans. Antennas Propagat.

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“…In recent years, FSS has been widely studied, which possesses the capability of increasing gain and broadening bandwidth [15][16][17][18][19][20][21]. One of the most important challenges in the design of the antenna loading FSS is its frequency bandwidth for the return loss and maximum directivity.…”

Section: Introductionmentioning

confidence: 99%

A Wideband and High Gain Dual-Polarzied Antenna Design by a Frequency-Selective Surface for Wlan Application

Zhu¹,

Yu²,

Li³

et al. 2014

PIER C

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Abstract-A new dual-polarized antenna loading frequency-selective surface (FSS) is proposed for 5G wireless local networks (WLANs) application. The antenna consists of two orthogonal bow-tie dipoles and a ground plane. A new wideband FSS is designed comprising ring-slot connecting rectangular slots. The reflection coefficient of wideband FSS is less than 0.9 from 4-6.5 GHz. The phase of reflection coefficient is −163 • at 5.5 GHz. The novel cell analyzed by the equivalent circuit is given and simulated. The wideband FSS is employed as a superstrate layer for bandwidth enhancement and radiation gain improvement of the antenna. After loading wideband FSS, the measured bandwidth is 5.3-6.3 GHz (17.2%) with S 11 and S 22 both less than −10 dB, which cover various 5G WLAN bandwidths. The gain of the antenna is 12.1 dBi at 5.5 GHz. The bandwidth of antenna with FSS increases 40%, and gain improves 5.6 dBi. The simulated and measured results agree well.

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“…Compared to traditional antenna arrays to achieve high directivity, FPCA can have the same performance but with no complex feeding network. A variety of novel FPCA has been proposed with different structures and capabilities in the past two decades [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Broadside high-directive radiation can be realized by numerous in-phase superposition when the spacing between these two surfaces is about half wavelength in the operating frequency. The feeding source can be a radiating patch [2,3], a dipole [4], a waveguide [5] or an array [6]. The PRS is usually realized by frequency selective surface (FSS), which acts as a space filter and reflects or transmits at a certain frequency band.…”

Section: Introductionmentioning

confidence: 99%

A metallic Febry-Perot cavity antenna with slot-type FSS and hybrid lateral boundaries for high aperture efficiency

Zhao

Zhang

Feng

2011

2011 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS)

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A metallic Febry-Perot cavity antenna (FPCA) with high aperture efficiency is present. The partially reflective cover of the proposed FPCA is realized by cross-dipole-slot type metallic frequency selective surface (FSS). With the combination of hybrid lateral boundaries, high aperture efficiency is achieved. The configurations of the lateral boundaries are that two short side walls are set to be perpendicular to the cavity horizontal field, while two open side walls are set to be parallel to the operating horizontal mode. The final field in the horizontal plane is uniformly distributed and therefore high aperture efficiency is realized. A prototype with overall aperture dimension of 2.86λ 2.86λ is designed, and the maximum realized directivity is 19.96dB at 14.27GHz, which corresponds to 96.4% aperture efficiency.

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Broadband Printed Compound Air-Fed Array Antennas

Cited by 46 publications

References 17 publications

Effective Reflective Characteristics of Superstrates and Their Effects on the Resonant Cavity Antenna

Effective Reflective Characteristics of Superstrates and Their Effects on the Resonant Cavity Antenna

A Wideband and High Gain Dual-Polarzied Antenna Design by a Frequency-Selective Surface for Wlan Application

A metallic Febry-Perot cavity antenna with slot-type FSS and hybrid lateral boundaries for high aperture efficiency

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