Wideband Low-Profile Dielectric Patch Antenna and Array With Anisotropic Property

Tang, Shi‐Chang; Yang, Wen; Chen, Jianxin

doi:10.1109/tap.2019.2944534

Cited by 49 publications

(25 citation statements)

References 28 publications

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“…According to the theoretical analysis in Reference22, the equivalent dielectric constant of this resonator can be defined as ε reff = ( ε rx × m + ε ry × n + ε rz × s)/(m + n + s) and the equivalent thickness is h eff = 2 × ( h d + h s ) due to the mirror effect. By making full use the multimode characteristic of the DP resonator, two pairs of degenerate modes (ie, the dominant TM 101 mode and TM 011 mode, the high‐order TM 121 mode, and TM 211 mode) are selected for the following broadband design.…”

Section: Design Of the Proposed Cp Dp Antennamentioning

confidence: 99%

“…To decrease the profile of the DR antenna, a new kind of quasi‐planar dielectric patch (DP) antenna has been developed. The previous studies show that the DP antenna is an ideal compromise between the traditional MP antenna and DR antenna in terms of profile, efficiency, and gain 20‐23 . Moreover, the DP antenna also inherits the multimode characteristic of the DR antenna.…”

Section: Introductionmentioning

confidence: 99%

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A low‐profile circularly polarized dielectric patch antenna with bandwidth expansion

Chen

Wang

Huang

et al. 2021

Int J RF Microw Comput Aided Eng

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A new technology for expanding the axial ratio (AR) bandwidth of the circularly polarized (CP) dielectric patch (DP) antenna while maintaining the low‐profile characteristic is proposed for the first time. By making full use of the multimode characteristic of the DP resonator, two pairs of degenerate modes (ie, TM101 and TM011, TM121 and TM211) are selected for the broadband design. The key to the proposed technology is that according to the EM field distribution of the two pairs of degenerate modes, four air holes are introduced in the DP and their position and size are elaborately designed to discriminately control the frequency of the two pairs of degenerate modes. Then, these modes become close and are merged to effectively expanding the AR bandwidth of the low‐profile CP DP antenna. For demonstration, a prototype centered at about 10 GHz is designed, fabricated, and measured. The measured results exhibit that the proposed CP DP antenna with a low profile of 0.07λ0 owns a 3 dB AR bandwidth of 9.7% and a peak gain of 7.66 dBic. Good agreement is observed between simulated and measured results.

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Section: Design Of the Proposed Cp Dp Antennamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A low‐profile circularly polarized dielectric patch antenna with bandwidth expansion

Chen

Wang

Huang

et al. 2021

Int J RF Microw Comput Aided Eng

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“…[17][18][19][20] On the one hand, due to the anisotropic property of the DP resonator, the radiation mainly comes from the sidewalls, which is similar to the radiation mechanism of the MP antenna. 18 It means that the DP antenna has a relatively high gain while maintaining a low profile. On the other hand, the DP antenna not only has high radiation efficiency comparable to that of the DR antenna but also inherits the multimode nature.…”

Section: Introductionmentioning

confidence: 99%

A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

Wang

Tang

Yang

et al. 2021

Int J RF Microw Comput Aided Eng

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A differential-fed dual-polarized dielectric patch (DP) antenna with high gain, wide bandwidth, and high isolation is investigated in this article. Based on the analysis of the anisotropic property of the DP antenna, further exploration of gain enhancement is carried out. The introduction of the square air hole in the substrate to obtain a hollow DP resonator is a crucial technique. It not only increases the electromagnetic radiation from the sidewalls of the DP resonator to further improve the gain to 8.9 dBi, but also shifts the dominant TM 101 mode upward to get close to the higher-order TM 121 mode to achieve bandwidth expansion of 19.4%. By using the differential-fed scheme to excite the TM 101 mode, TM 121 mode and their degenerate modes, dual-polarization operation and high isolation level can be obtained simultaneously. K E Y W O R D Sdielectric patch (DP) resonator, differential-fed, dual-polarized antenna, high gain, low-profile, wideband

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“…Recently, to fulfil the demand for high gain antenna, high-gain DRA arrays have been widely studied [8][9][10][11][12][13][14]. In [8], a high-gain DRA array fed by a radial-line waveguide is presented.…”

Section: Introductionmentioning

confidence: 99%

“…The only disadvantage is that the antenna covers a large area with a high profile. To reduce the profile, a dielectric patch resonator with silver-coated slots is presented, and a 1 × 4 array is designed [10]. The measured impedance bandwidth is about 17%, and the peak gain is 13.55 dBi.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of Conformal Dielectric Resonator Antenna Array Based on Aperture-Coupled Series-Feeding Approach

Li¹,

Yue²,

Zhang³

et al. 2021

PIER C

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A novel conformal dielectric resonator antenna (DRA) array based on aperture-coupled series-feeding approach is presented for wireless communication. The antenna is composed of eight curved width-gradated DRA elements with a simple feeding structure. The proposed design presents a tapered current amplitude distribution by using DRA element width gradation method, and low side-lobe level (SLL) characteristic can be obtained. Besides, an extra matching line is inserted into the single feeding line to realize better impedance characteristic. To validate the performance of the proposed design, the conformal array is fabricated and measured in an anechoic chamber. The measured impedance bandwidth (|S 11 | < −10 dB) of the fabricated prototype is from 5.78 GHz to 5.87 GHz. At 5.8 GHz, the antenna offers a measured peak gain of 14.75 dBi and SLL of −19.3 dB. The polarization discriminations of the array on Eand H-planes are greater than 20 dB. The measured results of the fabricated prototype demonstrate that the proposed design has the potential to be applied to wireless communication system with curved surface.

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Wideband Low-Profile Dielectric Patch Antenna and Array With Anisotropic Property

Cited by 49 publications

References 28 publications

A low‐profile circularly polarized dielectric patch antenna with bandwidth expansion

A low‐profile circularly polarized dielectric patch antenna with bandwidth expansion

A differential‐fed dual‐polarized antenna with gain enhancement using hollow dielectric patch resonator

Design and Optimization of Conformal Dielectric Resonator Antenna Array Based on Aperture-Coupled Series-Feeding Approach

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