A Broadband Patch Antenna Array With Planar Differential L-Shaped Feeding Structures

Jin, Huayan; Chin, Kuo‐Sheng; Che, Wenquan; Chang, Chih‐Chun; Li, Hua-Juan; Xue, Quan

doi:10.1109/lawp.2014.2357058

Cited by 40 publications

(23 citation statements)

References 8 publications

(7 reference statements)

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“…The proposed structure is a practical alternative to the costly, heavy, and bulky RWG feeder while maintaining the miniaturization, performance enhancement, cost reduction, and ease of integration with MPAs. In terms of bandwidth, the proposed array is able to attain a wide bandwidth in comparison to wideband radiation elements, such as U‐shaped parasitic patches, 16 L‐probe‐fed patch array, 17 and magneto‐electric‐dipole array 18 . According to Table 2, it can be concluded that the present design achieves wider fractional impedance bandwidth, higher radiation efficiency, higher aperture efficiency, and smaller size compared to the other MPA arrays.…”

Section: Fabrication and Measurement Resultsmentioning

confidence: 82%

A compact and wideband array antenna with efficient hybrid feed network

Karami

Rezaei

Amn‐e‐Elahi

et al. 2020

Int J RF Microw Comput Aided Eng

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This study presents a high-efficient, compact, and broadband microstrip patch antennas (MPAs) based on substrate-integrated waveguide (SIW) for X-band applications. The proposed array consists of three stacked layers from top to bottom, including one layer as the antenna layer and two SIW layers as a feeding network. The performance was focused on improving the impedance bandwidth and radiation efficiency by mitigating the loss from the feed network while also maintaining the compact design. To this end, the SIW feeding network was designed to feed the MPA to save the physical aperture size which resulted in a more compact and efficient radiating structure. The overall size of the proposed array is compact and extra surface area around the radiation aperture has not been occupied. The measured −10 dB impedance bandwidth span is from 8.9 to 10.9 GHz (20.2%). The maximum measured gain at 10.6 GHz is 10.6 dBi. The results show that the simulated radiation efficiency and the measured aperture efficiency are more than 75% and 50%, respectively. The fabricated array exhibits great advantages such as wide operating bandwidth, lightweight, low-cost, high aperture efficiency, high radiation efficiency, and compactness which make it a good candidate for X-band applications.

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Section: Fabrication and Measurement Resultsmentioning

confidence: 82%

A compact and wideband array antenna with efficient hybrid feed network

Karami

Rezaei

Amn‐e‐Elahi

et al. 2020

Int J RF Microw Comput Aided Eng

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“…Accordingly, the dual Marchand balun is proposed in this design, which can be seen as two traditional Marchand baluns placed back‐to‐back, providing two pair of differential signals for the 2 × 2 antenna array. It has much simpler structure over the traditional design using the combination of hybrid coupler and two Wilkinson power dividers, as in References 25 and 28. As shown in Figure D, a half‐guided wavelength ( λ g /2) microstrip line in the middle is fed by port 1, which is used as the input port of the array.…”

Section: Design Of 2 × 2 Cp Dp Arraymentioning

confidence: 99%

A low‐profile circularly polarized dielectric patch antenna and array

Yang

et al. 2019

Int J RF Microw Comput Aided Eng

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A square dielectric patch (DP) resonator fusing with the bottom substrate is studied for designing low-profile circularly polarized (CP) antenna. Based on the theoretical investigation using the constructed analysis model, it can be found that the proposed DP resonator possesses a pair of degenerate dominate modes (TM 101 and TM 011 ), which can be split by introducing perturbations on the DP resonator and then used to design CP antenna fed by a microstrip line directly. To verify the proposed idea, a 2 × 2 array fed by a dual Marchand balun network is designed and implemented. Reasonable agreement between the measured and simulated results is observed. Experimental results show that a measured impedance bandwidth is 380 MHz (5.18-5.56 GHz) for |S 11 | < −10 dB and the 3-dB axial ratio bandwidth is 90 MHz (5.32-5.41 GHz). The measured gain is up to 11.77 dBic with a cross polarization of about −20 dB in the boresight direction. K E Y W O R D Santenna array, circularly polarized (CP), dielectric patch (DP) antenna, low-profile

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“…The rectangular radiation patch is on the top surface of the Substrate 1, which is fed by an L‐shaped feeding structure. Here, a row of metalized via holes in is replaced by a cuboid metal, as shown in Figure (a). Through adjusting the dimension parameters of the L‐shaped feeding structure, a dual‐band performance can be achieved.…”

Section: Antenna Structurementioning

confidence: 99%

“…In this letter, to resolve the problem mentioned above, based on the structure mentioned in , a wideband and dual‐band antenna with directional patterns are proposed. Through exchanging the row of via holes in with a cuboid metal, the antenna can operate in a high‐order mode. In addition, the impedance matching at higher frequency can be improved.…”

Section: Introductionmentioning

confidence: 99%

Compact wideband and dual‐band antenna with directional patterns

Wang

Liu

Zhang³

et al. 2015

Micro & Optical Tech Letters

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A compact wideband and dual‐band antenna with directional patterns is proposed. The antenna is mainly composed of three substrates, a rectangular radiation patch, a slotted ground, a microstrip feed line, and an L‐shaped feeding structure that consists of a rectangular patch and a cuboid metal. Using the L‐shaped feeding structure, the antenna can operate in a high‐order mode, and a wideband and dual‐band antenna is achieved. The measured impedance bandwidths are 10.0% (12.3–13.6 GHz) for the lower frequency band, and 22.3% (16.7–20.9 GHz) for the higher frequency band. The radiation patterns at two pass‐bands are stable, and the average gains at lower and higher frequency are 7.0 dBi and 5.7 dBi, respectively. The details of the antenna design, the operation mechanism, and the simulated and measured results are presented. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:2742–2745, 2015

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A Broadband Patch Antenna Array With Planar Differential L-Shaped Feeding Structures

Cited by 40 publications

References 8 publications

A compact and wideband array antenna with efficient hybrid feed network

A compact and wideband array antenna with efficient hybrid feed network

A low‐profile circularly polarized dielectric patch antenna and array

Compact wideband and dual‐band antenna with directional patterns

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