A Wideband Circularly Polarized Candy-Like Patch Antenna

Sun, Licheng; Huang, You-Huo; Li, J.-Y.; Liu, Q.-Z.

doi:10.1163/156939311795762105

Cited by 16 publications

(13 citation statements)

References 21 publications

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“…These researches give us some effective methods to achieve wideband CP antenna. Thereinto, since a metal plate directly suspended over a ground plane at a large fractional height of the free-space wavelength, which not only just minimizes the fabrication cost but also eradicates the dielectric loss, thus suspended plate/patch antenna (SPA) has become one of the simple yet costeffective approaches to improve the bandwidth [20].…”

Section: Introductionmentioning

confidence: 99%

Broadband Single-Fed Single-Patch Circularly Polarized Microstrip Antenna

Xu¹,

Ren²,

Yin³

et al. 2013

PIER C

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Abstract-The paper demonstrates a novel antenna which can achieve a broad impedance bandwidth and circularly polarized bandwidth with a suspended corner-truncated square patch and a new probe-fed rectangular strip. By incorporating a probe-fed rectangular strip inside a high substantial cavity (∼ 0.144λ 0 ), a broad impedance bandwidth (VSWR < 2.0) of 770 MHz (31.43%) is achieved. To obtain a good circularly polarized (CP) bandwidth matching with the impedance bandwidth, two stubs with optimized lengths are loaded at the non-radiating edges of the corner-truncated square patch symmetrically. Measured results show that the CP antenna features a wide operating bandwidth of 10% ranging from 2.41 GHz to 2.66 GHz (VSWR < 1.5 and axial ratio < 3 dB) and that of 22.45% ranging from 2.31 GHz to 2.86 GHz (VSWR < 2 and axial ratio < 6 dB) and good radiation patterns with cross-polarization level (LHCP) lower than the co-polarization level (RHCP) by more than 20 dB at the broadside direction. The average gain of this antenna is recorded as about 8.16 dBi across the operating bandwidth.

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Section: Introductionmentioning

confidence: 99%

Broadband Single-Fed Single-Patch Circularly Polarized Microstrip Antenna

Xu¹,

Ren²,

Yin³

et al. 2013

PIER C

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“…Though the CPW-feed can present 3-dB AR bandwidth (68%) and 10-dB return loss bandwidth (107%) [8], its measured bore-sight gain is only 3.0 dBic over the CP bandwidth. A wideband single-fed circularly polarized patch antenna and a wideband circularly polarized antenna with suspended candy-like patch were introduced [9,10], which obtained a wide impedance and polarization bandwidth but made use of two or three layers substrates leading to difficulty of fabrication and adjustment. Besides that, a suspended patch antenna with indented edge and gap-coupled feed has been presented to realise circular polarization [11].…”

Section: Introductionmentioning

confidence: 99%

A Wideband Twin-Diamond-Shaped Circularly Polarized Patch Antenna With Gap-Coupled Feed

Li¹,

Ren²,

Yin³

et al. 2013

PIER

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Abstract-A novel twin-diamond-shaped antenna is presented for wideband circularly polarized (CP) radiation. By introducing a twin-diamond-shaped patch and a gap-coupled feed structure, a lefthanded circularly polarized (LHCP) antenna in bore-sight direction is obtained. The gap-coupled feed structure consists of a horizontal microstrip arm of approximately 0.285λ 0 at the centre frequency and two small diamonds, which greatly contributes to wideband characteristics. The experimental bandwidths of 10-dB return loss and 3-dB axial ratio (AR) for the antenna prototype are about 20% and 9.2%, respectively. The measured gain is more than 6.8 dBi over the entire bandwidth.

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“…Spiral antennas which have essentially frequency-independent radiation and impedance characteristics over bandwidth are the exemplary wideband CP antenna, but they are bulky and required to achieve the proper phase progression between adjacent spiral arms [21]. To design a low-profile and compact size, the stacked configurations [22][23][24][25][26][27][28][29] with a patch element are employed and the bandwidths are less than 30%. The broadband single-patch CP microstrip antennas with dual capacitively coupled feeds are proposed [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

A Wideband Planar Monopole Antenna Array With Circular Polarized and Band-Notched Characteristics

Lee¹,

Oh²,

Yu³

2012

PIER

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Abstract-A wideband circular polarized planar monopole antenna array (PMAA) that employs dual band-notched characteristics is presented in this paper. The proposed antenna array is formed by four pinwheel-shaped folded planar monopole antennas (PMAs) in order to improve the performance of circular polarization and high directivity. Also, it achieves low-profile, small-sized structure. The attractive characteristics of the proposed PMAA are a wide impedance bandwidth of 87.3% (1 GHz to 2.55 GHz), the 3 dB axial-ratio (AR) bandwidth of 92.3% (1.05 GHz to 2.85 GHz) excluding dual notch bands, the total bandwidth of 35% (1.8 GHz to 2.55 GHz), and the maximum gain of 8.24 dBic within the total bandwidh. Moreover, in order to generate dual band-notched characteristics in a circular polarized antenna, a folded PMAA with multiple U radiators and inverted W slots is proposed.

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A Wideband Circularly Polarized Candy-Like Patch Antenna

Cited by 16 publications

References 21 publications

Broadband Single-Fed Single-Patch Circularly Polarized Microstrip Antenna

Broadband Single-Fed Single-Patch Circularly Polarized Microstrip Antenna

A Wideband Twin-Diamond-Shaped Circularly Polarized Patch Antenna With Gap-Coupled Feed

A Wideband Planar Monopole Antenna Array With Circular Polarized and Band-Notched Characteristics

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