Impact of Radiation Pattern Control of MIMO Antenna on Interfered Multicell Environment

Saitoh, Masumi; Honma, Naoki; Murakami, Tomoki

doi:10.1109/lawp.2015.2466537

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…In Refs. , tunable parasitic elements are used to achieve continuous beamwidth tuning in H‐plane and in both the principal planes, respectively. In addition to this, several designs are reported to realize continuous beam scanning and tunable beamwidth in a single antenna structure .…”

Section: Introductionmentioning

confidence: 99%

A reconfigurable microstrip cross parasitic antenna with complete azimuthal beam scanning and tunable beamwidth

Khairnar

Kadam

Ramesha

et al. 2018

Int J RF Microw Comput Aided Eng

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In this article, a reconfigurable cross parasitic antenna is proposed to achieve complete azimuthal beam scanning and tunable beamwidth in the E-and H-plane. The antenna consists of a square-shaped driven element and four size-tunable parasitic elements placed on each side of the driven element. Each tunable parasitic element is composed of a hexagonal slot loaded with two varactor diodes. The tunable parasitic element shows dual-resonance behavior and hence its effective electrical size can be controlled with respect to the driven element. The radiated beam of the cross antenna is continuously scanned in the elevation plane from θ = 0 to 10.8 , 0 to 32.4 , and 0 to 40 in ϕ = (0 , 180 ), (45 , 135 , 225 , 315 ), and (90 , 270 ) planes, respectively. Moreover, the 3-dB beamwidth of the cross antenna is continuously tuned from 65 to 152 and from 64 to 116 in the E-and H-plane, respectively. The antenna shows good impedance matching in all the operating modes with −10 dB bandwidth from 2.43 to 2.47 GHz. A prototype of the antenna is fabricated to experimentally verify the simulated reflection and radiation characteristics. K E Y W O R D S continuous beam scanning, effective electrical size, mutual coupling, tunable beamwidth, tunable parasitic element

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Section: Introductionmentioning

confidence: 99%