A Wideband Dual-Polarized Antenna Using Shorted Dipoles

In this article, a high‐gain and dual‐polarized antenna with UWB operation is proposed. The antenna is composed of two tapered dipoles as radiating elements, which are arranged orthogonally and fed perpendicularly to achieve polarization diversity. A metallic cavity reflector is placed behind the radiator for high gain radiation entire the operating bandwidth. To validate the design method, an antenna prototype is designed, fabricated, and measured. The measured results demonstrate that the proposed design has good performance with |S11| ≤ −10 dB and isolation ≥20 dB over a frequency band 3.2‐8.8 GHz, equivalently to about 93.3%. In addition, unidirectional radiation pattern and broadside gain of from 8.1 to 11.8 dBi are obtained across the operating bandwidth.

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…13 This deficiency makes them not applicable for UWB systems. Besides, using balun 12,13 or differential feed 15,18 also increases the antenna's complexity.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High‐gain dual‐polarized antenna for ultrawideband applications

Tran

2019

“…Alternatively, dual polarization can also be realized using crossed dipole structures. This type of antenna is generally formed by two electric dipoles (E‐dipole) or the combination of electric and magnetic dipoles (ME‐dipole) …”

Section: Introductionmentioning

confidence: 99%

Ultrawideband high‐gain dual‐polarized antenna with anti‐interference capability

Tran

2019

In this article, a high‐gain dual‐polarized antenna with band‐rejection capability for ultrawideband (UWB) applications is proposed. Tapered dipoles are chosen as a primary radiator to achieve UWB operation and it is reflected by a metallic cavity reflector for high gain radiation. A notch at WLAN band is realized by etching a set of four bent slots in the radiating elements. The measured results demonstrate that the proposed design with overall dimensions of 0.69λ L × 0.69λ L × 0.16λ L (λ L is free‐space wavelength at the lowest operating frequency) has operating bandwidth of 95.1% (3.2‐9.0 GHz) and the rejected frequency band from 5.0 to 5.9 GHz. Additionally, good unidirectional radiation patterns with a broadside gain from 8.1 to 11.5 dBi and radiation efficiency of better than 90% are also achieved.

A low‐cost high‐gain dual polarized antenna design from cuboids and shorting strips for base stations

Yadav

Duttagupta

Nagaraju

2019

This article presents a novel low-cost high-gain dual-polarized antenna using suspended cuboid and ground connected cuboid geometry. The design structure of the antenna is simple and it's all components are fabricated by a copper sheet of thickness 0.5 mm. The prototype is fabricated and measured and has −15 dB impedance bandwidths of 33.33%(2.5-3.5 GHz) with broadside gain of 9.2 ± 0.3 dBi and 32.25%(2.6-3.6 GHz) with broadside gain 9 ± 0.3 dBi over bandwidths when measured from port 1 and port 2, respectively. The isolation between the ports is enhanced by shorting suspended cuboid from the ground plane and measured one more than 17 dB from 2.45 to 3.7 GHz. The proposed dual polarized antenna can be used for base stations such as Wireless Local Area Network (WLAN), Long Term Evolution (LTE), and Worldwide Interoperability for Microwave Access (WiMAX) applications. The antenna is designed and simulated and there are good agreements between simulated and measured results are obtained. K E Y W O R D S a circular ground plane, base stations, flat-gain dual polarized, low-cost and high-gain, shorting strips, suspended cuboid