The Design of a Dual-Polarized Small Base Station Antenna With High Isolation Having a Metallic Cube

Lee, Jungnam; Lee, Kwang-Chun; Song, Pyeong-Jung

doi:10.1109/tap.2014.2379939

Cited by 37 publications

(18 citation statements)

References 16 publications

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“…Patch antennas are the commonly used techniques to realize dual-polarization with low profile and compact size [3]- [14]. To obtain wide impedance bandwidth, direct probe feed [3]- [4], proximity coupling [5]- [7], aperture coupling [8]- [12], and hybrid feed [13]- [14] are utilized to design wideband dual-polarized antennas. In [4], two stacked E-shaped patches are directly fed by the two probes with the relative bandwidth of 7.7%.…”

Section: Introductionmentioning

confidence: 99%

A Wideband Differentially Driven Dual-Polarized Antenna by Using Integrated Six-Port Power Divider

Wen

Gao

Luo

et al. 2019

IEEE Trans. Antennas Propagat.

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Section: Introductionmentioning

confidence: 99%

A Wideband Differentially Driven Dual-Polarized Antenna by Using Integrated Six-Port Power Divider

Wen

Gao

Luo

et al. 2019

IEEE Trans. Antennas Propagat.

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“…An LTE small-cell base station requires its antenna having multiple elements that cover full LTE frequency bands, including an upper LTE band (LTE1700/1900/2100/2600, 1710-2690 MHz) and a lower LTE band (LTE700/850/900, 698-960 MHz). However, to date the development of MIMO antennas for this application is limited by insufficient number of multifrequency bands, as the literature focuses on either the upper LTE band [Zhai et al, 2015;Arya et al, 2015;Lee et al, 2015;Jin and Du, 2015;Lee et al, 2014;Cui et al, 2014;Zhai et al, 2014;Quan and Li, 2013;Luk and Wu, 2012;Wu and Luk, 2009;Mak et al, 2007] or lower LTE band alone [Chen and Chang, 2016;Yan and Bernhard, 2012]. No research findings are yet available concerning MIMO antenna design meeting the full LTE specification for compact base stations.…”

Section: Introductionmentioning

confidence: 99%

An isolation-enhanced quad-element antenna using suspended solid wires for LTE small-cell base stations

Chen

Zhou

2017

Radio Sci.

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This paper presents a multiple‐input‐multiple‐output (MIMO) antenna that has four‐unit elements enabled by an isolation technique for long‐term evolution (LTE) small‐cell base stations. While earlier studies on MIMO base‐station antennas cope with either a lower LTE band (698–960 MHz) or an upper LTE band (1710–2690 MHz), the proposed antenna meets the full LTE specification, yet it uses the maximum number of unit elements to increase channel capacity. The antenna configuration is optimized for good impedance matching and high radiation efficiency. In particular, as the spacing between unit elements is so small that severe mutual coupling occurs, we propose a simple structure with extremely low costs to enhance the isolation. By using suspended solid wires interconnecting the position having strong coupled current of two adjacent elements, an isolation enhancement of 37 dB is achieved. Although solid wires inherently aim at direct‐current applications, this work successfully employs such a low‐cost technique to microwave antenna development. Experimental results have validated the design guidelines and the proposed configuration, showing that antenna performances including impedance matching, isolation, radiation features, signal correlation, and channel capacity gain are highly desired for LTE small‐cell base stations.

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“…Owing to the recent interest in the multiple‐frequency operation, many multi‐band cavity‐backed antennas have been presented in the literature [4–10]. In these designs, the focus should be on the thickness of the cavity, which is highly related to the antenna bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Design of dual‐band cavity‐backed slot antenna loaded with spurline

Hung

Chiu

2016

IET Microwaves, Antennas & Propagation

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A design of dual‐band cavity‐backed slot antenna loaded with a spurline is presented for GPS and S‐band radar applications. In the design, a very thin cavity (0.017 in thickness at 1.575 GHz) is used to achieve unidirectional radiation. The dual‐band responses of the antenna are excited by the slot resonance at 1.575 GHz and waveguide transition effect at 2.4 GHz. Reasonable impedance bandwidths are obtained as 1.6% (26 MHz) at 1.575 GHz and 8.4% (203 MHz) at 2.4 GHz. The proposed slot can also be loaded with a spurline to adjust the antenna centre frequency and the phase of the radiated field. A switch using a PIN diode is deployed with the spurline. It is found that the spurline and the corresponding bias circuit for the PIN diode have little effect on the antenna radiation. Two proposed slots are combined to form an antenna which is right‐hand circularly‐polarised at both 1.575 and 2.4 GHz. A phase delaying system consisting of delay line and the spurline is designed to achieve 90° phase difference at both frequencies. The measured axial‐ratio bandwidths are 1.5% (24 MHz) at 1.575 GHz and 4.5% (110 MHz) at 2.4 GHz, which are sufficient for practical applications.

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The Design of a Dual-Polarized Small Base Station Antenna With High Isolation Having a Metallic Cube

Cited by 37 publications

References 16 publications

A Wideband Differentially Driven Dual-Polarized Antenna by Using Integrated Six-Port Power Divider

A Wideband Differentially Driven Dual-Polarized Antenna by Using Integrated Six-Port Power Divider

An isolation-enhanced quad-element antenna using suspended solid wires for LTE small-cell base stations

Design of dual‐band cavity‐backed slot antenna loaded with spurline

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