Dual band interleaved base station phased array antenna with optimized cross-dipole and EBG/AMC structure

Hyjazie, Fayez; Watson, Paul; Boutayeb, Halim

doi:10.1109/aps.2014.6905105

Cited by 10 publications

(4 citation statements)

References 2 publications

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“…The proposed MIMO antenna array is composed of two subarrays and each subarray consists of ten antenna elements, as shown in Figure 12(a). To suppress the mutual coupling effects between subarrays or array elements, two typical decoupling techniques are adopted: (i) baffles are employed between adjacent array elements and subarrays [1], [4]; (ii) a staggered form is arranged for the two subarrays [31], [33]. Notice that the two approaches mentioned above are effective methods for alleviating mutual coupling, which are often adopted by engineers in practical product developments.…”

Section: A Geometry Of Antenna Arraymentioning

confidence: 99%

A Miniaturized Wideband Dual-Polarized Antenna Based on Mode-Control Principle for Base-Station Applications

2020

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In this paper, a miniaturized wideband dual-polarized antenna and its array are proposed and demonstrated for practical base-station applications. ''Mode-control'' principle is employed to facilitate both miniaturization and bandwidth-enhancement of the proposed antenna element. To be more specific, by inserting meander lines into a traditional crossed loop-dipole antenna, its first resonant mode can be shifted to a lower frequency without increasing the aperture size, implying that a total size reduction can be achieved. Meanwhile, by embedding a pair of crossed straight strips into the coupling region of the crossed loop-dipole antenna, its second resonant mode can be moved to a higher frequency with a good impedance matching, thereby improving the impedance bandwidth significantly. A prototype of the proposed antenna with a small radiator size of only 0.33λ × 0.33λ (λ is the wavelength at the center frequency of 2.2 GHz) is designed, fabricated and measured. Measurements show that in the target frequency band from 1.71 GHz to 2.69 GHz, i.e., 2G/3G/4G bands, a relatively good impedance matching with the VSWR of less than 1.65 and a high isolation of greater than 28 dB are obtained by the proposed antenna element. Also, a stable gain of 8.7±0.5 dBi and a stable 3-dB beamwidth of 64.8±2.7 • at the H-plane are respectively achieved. A multipleinput-multiple-output (MIMO) antenna array consisting of two subarrays with electrical down-tilt is further developed for practical base-station applications. Each subarray is composed of ten antenna elements. The overall width of the array is only 260 mm, which is much narrower than that of typical industrial products (∼305 mm). Measured results show that the antenna array has also achieved good performances such as wide impedance bandwidth, high isolations among different ports, and stable radiations over the 2G/3G/4G bands.

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Section: A Geometry Of Antenna Arraymentioning

confidence: 99%

A Miniaturized Wideband Dual-Polarized Antenna Based on Mode-Control Principle for Base-Station Applications

2020

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“…[6], [7] show a strip-type composite right/left-handed line with a downtilted beam. Using an EBG/AMC (artificial magnetic conductor) structure of dual-frequency phased array antennas, a study was performed to reduce the size of the lower band element and decrease the coupling of the higher band [8]. Reference [9] used simulation and experiments to show that a cylindrical EBG controlled with PIN diodes is able to act as azimuth beam steering.…”

Section: Introductionmentioning

confidence: 99%

Novel Cellular Active Array Antenna System at Base Station for Beyond 4G

Nakano

2017

IEICE Trans. Commun.

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SUMMARY This paper introduces a base station antenna system as a future cellular technology. The base station antenna system is the key to achieving high-speed data transmission. It is particularly important to improve the frequency reuse factor as one of the roles of a base station. Furthermore, in order to solve the interference problem due to the same frequency being used by the macro cell and the small cell, the author focuses on beam and null control using an AAS (Active Antenna System) and elucidates their effects through area simulations and field tests. The results showed that AAS can improve the SINR (signal to interference-plusnoise ratio) of the small cell area inside macro cells. The paper shows that cell quality performance can be improved by incorporating the AAS into a cellular base station as its antenna system for beyond 4G radio access technology including the 5G cellular system.

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“…Based on low profile cross -dipole and EBG/AMC structure, a new 8-port [12]interleaved base station antenna was designed. Three adaptive orthogonal crossed-dipoles [13] were used to remove the losses due to directivity and polarization mismatch if tracked by the transmit antenna.…”

Section: Crossed -Dipole Antennamentioning

confidence: 99%

Studyof Crosseddipole Antennafor UHF SatelliteCommunication Applicationsand its limitations

Rao¹,

Rao²

2017

IOSR JECE

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Dual band interleaved base station phased array antenna with optimized cross-dipole and EBG/AMC structure

Cited by 10 publications

References 2 publications

A Miniaturized Wideband Dual-Polarized Antenna Based on Mode-Control Principle for Base-Station Applications

A Miniaturized Wideband Dual-Polarized Antenna Based on Mode-Control Principle for Base-Station Applications

Novel Cellular Active Array Antenna System at Base Station for Beyond 4G

Studyof Crosseddipole Antennafor UHF SatelliteCommunication Applicationsand its limitations

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