A Circularly Polarized SIW Slot Antenna Based on High-Order Dual-Mode Cavity

Liang, Tian; Wang, Zhan; Dong, Yuandan

doi:10.1109/lawp.2020.2972115

Cited by 30 publications

(25 citation statements)

References 11 publications

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“…Antennas [1, 2, 3, 4, 5, 6] based on high‐order mode substrate integrated cavities (SIC) have been raised by researchers because of the advantage of high efficiency in millimeter‐wave band. Compared with the conventional substrate integrated waveguide (SIW) power divider, the high‐order mode SIC not only has lower path loss, but also uses fewer vias, making the structure of the feed‐network simple, compact and reducing the manufacturing cost.…”

Section: Introductionmentioning

confidence: 99%

60‐ghz wideband circularly polarized antenna array based on TE ₃₄₀ ‐mode SIC and sequential rotation feeding technique

Zhu

2021

IET Microwaves Antenna & Prop

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The authors propose a 4 � 4 circularly polarized (CP) antenna array with wide impedance bandwidth and axial-ratio (AR) bandwidth and design the same for 60-GHz applications. The overall structure of the proposed antenna array consists of a cavity-back circular patch array and two layer feed-networks. The upper feed-network is with four TE 340 high-order mode substrate integrated cavities (SIC). Fed with SIC, circular patches with a pair of 42°-inclined slits can achieve circular polarization. In order to improve the AR bandwidth and gain performance, the substrate integrated waveguide (SIW) sequential rotation feeding technique is utilized in the lower feed-network. For proof of concept, the 4 � 4 array is fabricated and measured. Measured results show that −10-dB impedance bandwidth of the proposed antenna array is 27.2% from 52 to 68.4 GHz and 3-dB AR bandwidth is 18.9% from 55.7 to 67.3 GHz. Furthermore, the 3-dB gain bandwidth is 26.2% from 53 to 69 GHz with a peak gain reaching 19.3 dBic at 62 GHz.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Introductionmentioning

confidence: 99%

60‐ghz wideband circularly polarized antenna array based on TE ₃₄₀ ‐mode SIC and sequential rotation feeding technique

Zhu

2021

IET Microwaves Antenna & Prop

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“…Antennas are indispensable components in wireless communication systems in which the bandwidth is an important performance. To meet the requirement of wideband communication, dual‐mode antennas are proposed to enhance the bandwidth 1–7 . The higher modes are shifted downwards by loading stubs and vias to achieve dual‐mode performance in [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Some parasitic elements are also utilized for dual-mode such as stacked patch, 3 slots, 4 and stripes, 5 which can resonate and enhance the bandwidth of the antenna. Besides, the cavity is also an available element for the realization of dual-mode, which can be often observed in the platform of substrateintegrated waveguide (SIW) 6,7 A dual-mode antenna is achieved by etching a rectangular slot loop on the upper wall of SIW in [6] and a combination of higher modes is realized by etching slots on the surface of SIW in [7]. However, the dual-mode antennas above have ignored the investigation of the low-cost performance, which could enhance the gain further.…”

mentioning

confidence: 99%

“…In addition, radiation nulls introduced to the antenna for filtering response have been studied extensively. 7,12 The antennas with good out-of-band suppression are getting the frequency selectivity enhanced and the unwanted signal suppressed. The cavity in a multilayer structure is a good option to introduce radiation nulls.…”

mentioning

confidence: 99%

“…To meet the requirement of wideband communication, dual-mode antennas are proposed to enhance the bandwidth. [1][2][3][4][5][6][7] The higher modes are shifted downwards by loading stubs and vias to achieve dual-mode performance in [1,2]. Some parasitic elements are also utilized for dual-mode such as stacked patch, 3 slots, 4 and stripes, 5 which can resonate and enhance the bandwidth of the antenna.…”

mentioning

confidence: 99%

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A low‐cost dual‐mode differentially‐fed patch antenna based on SISL platform with out‐of‐band suppression

Luo

Yin

Yan

et al. 2021

Micro & Optical Tech Letters

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A dual‐mode differentially‐fed patch antenna is proposed with out‐of‐band suppression based on substrate‐integrated suspended line (SISL) platform. Taking advantage of the air cavity in the SISL platform, the antenna is with two resonant modes for enhanced bandwidth. One mode is TM01 of the patch and the other one is the TE102 mode of the air cavity. A radiation null is also introduced by the air cavity at the upper band and result in out‐of‐band suppression. To verify the proposed design, a prototype is fabricated and measured. Measurements agree well with the simulations. In the band of 4.73–4.98 GHz, the reflection coefficients are less than −10 dB, which is for the Sub 6 GHz band for the 5G communication. Besides, the efficiency of the antenna is 80% with the low‐cost substrate of FR4.

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A dual‐band dual‐sense circularly polarized self‐diplexing SIW cavity‐backed antenna with elliptical slot for millimeter‐wave 5G applications

Kumar

Singh

2022

Int J RF Mic Comp-Aid Eng

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In this paper, a substrate integrated waveguide (SIW)‐based circularly polarized (CP) self‐diplexing antenna is proposed and discussed. The proposed antenna makes use of an elliptical slot in the metallic ground plane which is excited with the help of two separate microstrip feed lines, placed face‐to‐face with each other. This arrangement produces two different frequencies, centered around 21.70 and 27.10 GHz when separately excited by port‐1 and port‐2, respectively. The CP operation in both frequency bands can be brought by rotating the elliptical slot, which gives 3 dB axial‐ratio bandwidth (ARBW) of 3.01% and 6.62% in lower and upper‐frequency bands, respectively. A unidirectional radiation pattern and a peak gain of 7.70 and 9.84 dBic are obtained in lower and upper‐frequency bands, respectively. The radiation efficiency of more than 80% in both the operating frequency bands has been achieved. The behavior of the cavity modes is explained using an equivalent circuit model. The proposed antenna has been fabricated and the measured results are experimentally verified with the simulated ones. The attractive features such as low profile and low weight make the proposed SIW antenna suitable for satellite and millimeter‐wave 5G applications.

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A Circularly Polarized SIW Slot Antenna Based on High-Order Dual-Mode Cavity

Cited by 30 publications

References 11 publications

60‐ghz wideband circularly polarized antenna array based on TE ₃₄₀ ‐mode SIC and sequential rotation feeding technique

60‐ghz wideband circularly polarized antenna array based on TE ₃₄₀ ‐mode SIC and sequential rotation feeding technique

A low‐cost dual‐mode differentially‐fed patch antenna based on SISL platform with out‐of‐band suppression

A dual‐band dual‐sense circularly polarized self‐diplexing SIW cavity‐backed antenna with elliptical slot for millimeter‐wave 5G applications

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A Circularly Polarized SIW Slot Antenna Based on High-Order Dual-Mode Cavity

Cited by 30 publications

References 11 publications

60‐ghz wideband circularly polarized antenna array based on TE 340 ‐mode SIC and sequential rotation feeding technique

60‐ghz wideband circularly polarized antenna array based on TE 340 ‐mode SIC and sequential rotation feeding technique

A low‐cost dual‐mode differentially‐fed patch antenna based on SISL platform with out‐of‐band suppression

A dual‐band dual‐sense circularly polarized self‐diplexing SIW cavity‐backed antenna with elliptical slot for millimeter‐wave 5G applications

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Resources

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60‐ghz wideband circularly polarized antenna array based on TE ₃₄₀ ‐mode SIC and sequential rotation feeding technique

60‐ghz wideband circularly polarized antenna array based on TE ₃₄₀ ‐mode SIC and sequential rotation feeding technique