Circularly Polarized Patch Array Fed by Slotted Waveguide

Xu, Jin; Wang, Min; Huang, Hongkun; Wu, Wen

doi:10.1109/lawp.2014.2354072

Cited by 17 publications

(13 citation statements)

References 9 publications

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“…Simulated results in Figure 4 shows that the element has similar conductance property as a longitude slot cut on the broad wall. Further study has been conducted to investigate the effect of the offset of feeding slot on AR performance [10], which shows that the parameters of the slot have little influence on AR. It is indicated that CP radiation and prescribed excitation can be realized by adjusting perturbations and the feeding slot, independently.…”

Section: Design Of Circularly Polarized Elementmentioning

confidence: 99%

“…However, the polarizer is too cumbersome with high profile. In [10], split truncated patches are used to replace the metal polarizers to construct a CP patch array fed by slotted waveguide, which can also provide good circular polarization and efficiency. But the axial ratio 3 dB bandwidth of 3% is too narrow to meet the specific demand of satellite communications for which a wide bandwidth more than 6% is desirable.…”

Section: Introductionmentioning

confidence: 99%

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Wideband Circularly Polarized Square Slot Array Fed by Slotted Waveguide for Satellite Communication

Wang¹,

Hu²,

Chen³

et al. 2016

PIER Letters

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A wideband circularly polarized (CP) slot array with high radiation efficiency is proposed. The cavity-backed square slots are designed to achieve wideband CP radiation with a unidirectional pattern. The slotted waveguide is adopted to feed the array with high efficiency. The square slot, cavity and feeding slot in the waveguide can be viewed as a radiating element. A CP slot array can be conveniently designed as traditional waveguide slot arrays, once the element admittance characteristic is determined. A 1-by-8 CP array operating at 12.5 GHz has been developed. Measured impedance bandwidth of 6.9%, axial-ratio (AR) bandwidth of 8.8% and a gain of 15.4 dBi have been achieved. This array can be conveniently expanded to a larger wideband CP array with a higher gain, which is preferred for the specific satellite communication applications.

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Section: Design Of Circularly Polarized Elementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wideband Circularly Polarized Square Slot Array Fed by Slotted Waveguide for Satellite Communication

Wang¹,

Hu²,

Chen³

et al. 2016

PIER Letters

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“…To overcome these shortcomings, many substrate integrated waveguide (SIW) cavitybacked CP slot antennas have been proposed. The following three main radiating configurations of CP SIW cavity-backed slot antennas have been proposed in the literature: compound slots [5][6][7][8][9], annular, triangular or split ring slot [10][11][12][13] and patches, loop or cavity that cover the slots [14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Novel Circularly Polarized Siw Cavity-Backed Antenna With Wide Cp Beamwidth by Using Dual Orthogonal Slot Split Rings

Huang¹,

Lei²,

Jiang³

et al. 2017

PIER C

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Abstract-A circularly polarized (CP) substrate integrated waveguide (SIW) cavity-backed antenna based on dual concentric, orthogonal slot split ring resonators is proposed and experimentally studied. The circularly polarized wave is generated by two split ring-slots etched in the upper metal layer of the SIW cavity resonator. These two slots are excited by a coaxial probe located in the gap of the external slot split ring to radiate the right-handed circularly polarized (RHCP) wave. By rotating the dual split slot ring resonators and the probe by 45 degrees relative to the backed cavity, a better match characteristic and a slightly higher radiation gain are obtained. Because of the concentricity of radiant split ring slots, the beamwidth of the circular polarization is obviously increased. From the experimental results, the impedance bandwidth was 10.8% for the reflection coefficient less than −10 dB, the axial ratio (AR) bandwidth was 1.54% for the AR less than 3 dB, and the RHCP gain was 4.44 dBic. Moreover, the 3-dB axial ratio beamwidth at the centre frequency of 10.40 GHz has been extended to 142 • in the angular range from −78 • to +64 • .

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“…In [8], a technique for an array has been described to generate CP using linearly polarized patches creating unique angular and phase arrangements. CP array antennas that include serial fed corner truncated patches with a sequentially rotated technique [9] or a corner truncated patch array fed by a slotted waveguide [10] have been demonstrated. In this letter, a 2 Â 2 CP array antenna designed by applying a novel technique is presented.…”

Section: Introductionmentioning

confidence: 99%

A circularly polarized array antenna with inclined patches using both-sided MIC technology

et al. 2017

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A 2 × 2 circularly polarized array antenna for X-band applications is proposed in this letter. A new technique is employed to attain circular polarization by means of linear polarization patches. Two orthogonal modes with quadrature phase shift is achieved by making two patches quarter wavelength ahead and orthogonal with respect to other two patches. The feed network of the array is designed using both-sided MIC technology to overcome the impedance matching problem of conventional feed networks. A 3-dB axial ratio bandwidth of 1.41% is obtained and antenna gain is around 6.36 dBic. Keywords: microstrip antenna, circular polarization, array antenna, bothsided MIC technology Classification: Antennas and Propagation References

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Circularly Polarized Patch Array Fed by Slotted Waveguide

Cited by 17 publications

References 9 publications

Wideband Circularly Polarized Square Slot Array Fed by Slotted Waveguide for Satellite Communication

Wideband Circularly Polarized Square Slot Array Fed by Slotted Waveguide for Satellite Communication

Novel Circularly Polarized Siw Cavity-Backed Antenna With Wide Cp Beamwidth by Using Dual Orthogonal Slot Split Rings

A circularly polarized array antenna with inclined patches using both-sided MIC technology

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