Single-Feed Dual-Band Single/Dual-Beam U-Slot Antenna for Wireless Communication Application

Liu, Shuo; Qi, Shi‐Shan; Wu, Wen; Fang, Da‐Gang

doi:10.1109/tap.2015.2438331

Cited by 61 publications

(36 citation statements)

References 21 publications

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“…Observed that in the E‐planes, the measured crosspolarization level is higher than the simulated ones, as has been similarly reported in Refs. , wherein the authors attributed this phenomenon to two reasons, one reason is the limitation of the chamber used, that is, the effective dynamic range of the anechoic chamber was lower than the simulated crosspolarization levels, and the measured signals suffer from this limitation during the measurement. The other reason is the induced currents from the RF cables and connecters feeding the antenna in a close proximity, which radiate and alter the radiation pattern during the measurement.…”

Section: Measured Results and Discussionmentioning

confidence: 99%

Design and analysis of wideband U-slot patch antenna with U-shaped parasitic elements

Liu

Су

et al. 2017

Int J RF Microw Comput Aided Eng

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A single layer single probe‐fed wideband microstrip antenna is presented and investigated. By cutting a U‐slot in the rectangular patch, and by incorporating two identical U‐shaped parasitic patches around both the radiating edges and the nonradiating edges of the rectangular patch, three resonant frequencies are excited to form the wideband performance. Details of the antenna design is presented. The measured and simulated results are in good agreement, the measured impedance bandwidth is 1.44 GHz (4.82‐6.26 GHz), or 26.2% centered at 5.5 GHz, which covers WLAN 5.2 GHz ( 5.15‐5.35 GHz), WLAN 5.8 GHz ( 5.725‐5.825 GHz), and WIMAX 5.5 GHz ( 5.25‐5.85 GHz) bands. The measured peak gains at the three resonant frequencies are 7.73 dB, 7.01 dB, and 4.55 dB, respectively. An equivalent circuit model which is based on the transmission line theory, the asymmetric coupled microstrip lines theory, and the π‐network theory is established. This equivalent circuit model is used to give an insight into the wideband mechanism of the proposed antenna, and is also used to explain why the three resonant frequencies shift at the variations of different parameters from a physical point of view. The error analysis is given to demonstrate the validity of the equivalent circuit model.

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Section: Measured Results and Discussionmentioning

confidence: 99%

Design and analysis of wideband U-slot patch antenna with U-shaped parasitic elements

Liu

Су

et al. 2017

Int J RF Microw Comput Aided Eng

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“…In Refs. and , the radiating patch etched a U‐slot implements a wideband of over 7.0%. However, it is due to the slot on the radiating patch that the current on the radiating patch is changed and the unwanted current component is generated, which results in the worse polarization purity and the bad transmission quality of some demanding wireless communication systems.…”

Section: Introductionmentioning

confidence: 99%

A wideband patch antenna with a pair of antisymmetric balun as differentially fed network

Zhang

Lan

Liu

et al. 2018

Int J RF Microw Comput Aided Eng

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A novel singly differentially‐fed microstrip patch antenna (DFMA) is proposed, which is composed of a radiating patch, a differentially‐fed network with a twin antisymmetric miniaturized baluns and a ground plane for unidirectional radiation. In the differentially‐fed network, the signal is coupled to the two feedlines on both sides by the two miniaturized baluns. The radiating patch is excited by the coupling feed sheet located below the radiating patch, and the coupling feed sheet is connected to the upper end of the feedline. The lower end of the feedlines is connected to the ground plane, and there is a slot on the ground of the feeding network. Due to the existence of coupling feed sheet and slot, a second nonradiating resonant is achieved, and a wideband property is obtained. Finally, the prototype of the antenna is fabricated and studied experimentally. Simulated and measured results show that the impedance bandwidth of the antenna is 30.3% (1.71‐2.32 GHz) for S11 < −10 dB. Besides, a stable symmetric radiation pattern is obtained with gain around 9.6 dB and cross‐polarization less than −21 dB, which demonstrates the designed antenna has the property of wideband, high gain and low cross polarization.

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“…However, the length of LWAs is relatively large. To reduce the antenna volume, microstrip antennas have been widely used in many modern communication systems [3,4,5]. By using crossshaped probe feeding technique, a wideband symmetrical dual-beam microstrip antenna is proposed and investigated in [3].…”

Section: Introductionmentioning

confidence: 99%

A cpw-fed dual-beam shorted-patch antenna

Wang

Meng

et al. 2018

IEICE Electron. Express

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In this paper, a compact dual-beam shorted-patch antenna is presented for wireless communications at 5.8 GHz. A short-end coplanar waveguide (CPW) feed line integrated on the ground plane is adopted in the structure to provide dual beam characteristic. The metal via array is applied in order to adjust the resonant frequency. The simulated results dual-beam radiation in the E-plane has maxima at +45°and 135°. The measured radiation pattern is dual-beam and the peak gain is 6.11 dBi at 5.8 GHz.

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Single-Feed Dual-Band Single/Dual-Beam U-Slot Antenna for Wireless Communication Application

Cited by 61 publications

References 21 publications

Design and analysis of wideband U-slot patch antenna with U-shaped parasitic elements

Design and analysis of wideband U-slot patch antenna with U-shaped parasitic elements

A wideband patch antenna with a pair of antisymmetric balun as differentially fed network

A cpw-fed dual-beam shorted-patch antenna

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