A Waveguide Antenna With Bidirectional Circular Polarizations of the Same Sense

Zhao, Yang; Wei, Kunpeng; Zhang, Zhijun; Feng, Zhenghe

doi:10.1109/lawp.2013.2259462

Cited by 26 publications

(24 citation statements)

References 9 publications

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“…It is worth mention that the bidirectional array has a height of 30 mm (0.24λ 0 ) which seems to be bulky for RFID applications. But the profile of the proposed antenna is much smaller than the waveguide in [10] and special-substrate-based array in [11].…”

Section: Journal Of Electromagnetic Waves and Applications 1863mentioning

confidence: 97%

“…In [9], a bidirectional CP antenna with the same sense is proposed by using two back-to-back coupled patches with CPW feed in the centre. Bidirectional waveguide antenna [10] and dipole array [11] can also radiate CP waves with the same rotation towards two opposite directions. Metamaterial-based polarization converting surface is used in [12] to change the CP waves passing through it.…”

Section: Introductionmentioning

confidence: 99%

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Strip-coupling circularly polarized antenna and its same-sense bidirectional array

Lian

Wang

et al. 2015

Journal of Electromagnetic Waves and Applications

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A strip-coupling antenna and its bidirectional array with the same-sense circular polarization are introduced. By placing a bending strip above a narrow slot, circular polarization is obtained by combing the electric and magnetic currents. An array consisting of a three-element long slot and coupled strips on both sides of the slot is then constructed for bidirectional radiations with high gain. The fabricated antenna array shows wide bandwidth of 16.6% (2.16-2.55 GHz) for |S 11 | < −10 dB and 5.8% (2.33-2.47 GHz) for axial ratio <3 dB. In addition, same-sense bidirectional radiation patterns are also achieved with a high gain over 6.5 dBic.

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Section: Journal Of Electromagnetic Waves and Applications 1863mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Strip-coupling circularly polarized antenna and its same-sense bidirectional array

Lian

Wang

et al. 2015

Journal of Electromagnetic Waves and Applications

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“…Bidirectional antennas with CP nature mostly produce different senses of polarization unless purposefully designed for the same sense of polarization in both of the hemispheres. Examples of these designs include [4]- [8]. and perturbed to generate CP wave.…”

Section: Introductionmentioning

confidence: 99%

“…and perturbed to generate CP wave. In [8], a waveguide antenna approach is deployed to achieve a bidirectional CP antenna. Circular polarization is realized by placing two metallic strips inclined by 45 .…”

Section: Introductionmentioning

confidence: 99%

Bidirectional Same-Sense Circularly Polarized Slot Antenna Using Polarization Converting Surface

Khosravi

Mousavi

2014

Antennas Wirel. Propag. Lett.

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An asymmetric frequency selective surface (FSS) based on Jerusalem cross-slot (JC-SL) unit cell is used as a polarization converting surface (PCS) to change the sense of the circularly polarized (CP) wave as it passes through it. This is achieved by introducing 0 and 180 phase shifts for the two perpendicular linear polarized components of the CP wave. Without adding any extra phase shift, the transmitted CP wave will encounter a change in its sense of polarization. The PCS is then combined with a bidirectional CP slot antenna to achieve right-hand CP (RHCP) signal on both sides of the antenna. The overall size of the structure is about , where is the free-space wavelength. The structure is designed to operate at the GPS L1 band ( GHz).

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“…In Ref. [15], we designed a waveguide antenna with natural ability of producing Bi-CP of the same sense, and this feature was realized by two rectangular metal strips orthogonally inserted into a waveguide. However, only one sense of Bi-CP was available in this design and these two metal strips needed to be rotated by 90 to generate the other sense of Bi-CP.…”

Section: Introductionmentioning

confidence: 99%

A bidirectional waveguide antenna with polarization reconfigurable capability

Zhao

Wei

Zhang

et al. 2013

Micro & Optical Tech Letters

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A bidirectional metallic waveguide antenna with polarization reconfigurable capability is presented in this study. The polarization states of the proposed design can be flexibly reconfigured among two orthogonal circular polarizations (CP) and linear polarization (LP) simply by selecting four different combinations of microstrip feeding branches with switches. Two identical rectangular metal sheets perpendicular to each other were inserted into the diagonal directions of a waveguide aperture. They were excited with the same amplitude, but with 0 , 180 , 90 , or 270 phase difference by choosing two of four microstrip feeding segments each time, and left-band CP, right-hand CP, and LP could be generated, respectively. Meanwhile, the sense of CP in two opposite radiating directions was also the same for either sense of CP. The proposed reconfigurable antenna can provide link reliability and polarization diversity for mobile wireless communications in a multipath propagation environment. In addition, it alone can realize multifunctional operations and thus reduce system complexity and cost. Details of antenna design are shown, and measured results for the constructed prototype are exhibited and discussed.

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A Waveguide Antenna With Bidirectional Circular Polarizations of the Same Sense

Cited by 26 publications

References 9 publications

Strip-coupling circularly polarized antenna and its same-sense bidirectional array

Strip-coupling circularly polarized antenna and its same-sense bidirectional array

Bidirectional Same-Sense Circularly Polarized Slot Antenna Using Polarization Converting Surface

A bidirectional waveguide antenna with polarization reconfigurable capability

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