Millimeter-wave planar high gain SIW antenna using half elliptic radiation slots

Hao, Zhang‐Cheng; Ding, Wenqi; Fan, Kuikui; Liu, Xiaoming

doi:10.1002/mmce.20913

Cited by 3 publications

(2 citation statements)

References 22 publications

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“…With the rapid development of the fifth-generation communication (5G) technology, millimeter-wave multibeam array antennas and millimeter-wave multi-input and multi-output (MIMO) systems have been extensively studied. [1][2][3] For these applications, antennas systems 4,5 with high directivity and efficient are desired to compensate for large propagation path loss especially in the millimeter-wave frequency band and enhance the communication quality. 6 The beam-forming networks are cost effective and attractive approach to fulfill such antennas.…”

Section: Introductionmentioning

confidence: 99%

Flexible millimeter‐wave Butler matrix based on the low‐loss substrate integrated suspended line patch hybrid coupler with arbitrary phase difference and coupling coefficient

Zheng

et al. 2021

Int J RF Microw Comput Aided Eng

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In this paper, a millimeter-wave Butler matrix with flexible phase differences is proposed using the substrate integrated suspended line technology. To begin with, a low-loss substrate integrated suspended line (SISL) circular patch coupler consisting of four circular sectors is presented, achieving arbitrary phase difference and coupling coefficient by adjusting the angle and radii of the sectors. Based on the proposed coupler, two prototypes of the SISL Butler matrix are designed, fabricated and measured for the demonstration. In prototype I, the crossovers are removed and a flexible phase difference is obtained with an area size of 2.5 λ g × 2.8 λ g . In prototype II, both the crossovers and 45 phase shifters are removed and the phase differences of ±45 and ±135 are obtained with an area size of 1.86 λ g × 2.24 λ g . Low crosstalk between components and minimal radiation loss can be achieved by the SISL self-packaged characteristic and electromagnetic shielding. For both prototypes, the measured insertion losses are less than 2 dB at 26 GHz, including the loss of transitions and connectors, and the measured phase errors are less than ±10 within a bandwidth of more than 10%. The proposed Butler matrix shows the advantages of compact size, low loss and high integration. K E Y W O R D Sarbitrary phase difference, butler matrix, coupler, patch element, substrate integrated suspended line (SISL) | INTRODUCTIONWith the rapid development of the fifth-generation communication (5G) technology, millimeter-wave multibeam array antennas and millimeter-wave multi-input and multi-output (MIMO) systems have been extensively studied. [1][2][3] For these applications, antennas systems 4,5 with high directivity and efficient are desired to compensate for large propagation path loss especially in the millimeter-wave frequency band and enhance the communication quality. 6 The beam-forming networks are cost effective and attractive approach to fulfill such antennas. Three commonly-used circuit topologies for beam-forming networks are Blass, 7 Nolen, 8 and Butler 9 matrices. Among them, the Butler matrix is most widely applied for its simple structure and low power consumption. A conventional Butler matrix is composed of four 3-dB quadrate couplers, two 45 phase shifters, and two crossovers. When the signal is fed from one of the input ports, the signal will be divided into the four output ports

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Section: Introductionmentioning

confidence: 99%

Flexible millimeter‐wave Butler matrix based on the low‐loss substrate integrated suspended line patch hybrid coupler with arbitrary phase difference and coupling coefficient

Zheng

et al. 2021

Int J RF Microw Comput Aided Eng

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“…Slot array antennas have the advantages of high aperture efficiency, low side lobe level (SLL), low cross polarization and controllable radiation patterns, therefore they are frequently used in many applications [1,2,3,4,5]. Slot array antennas can be classified into two types: standing-wave-fed and traveling-wave-fed [6].…”

Section: Introductionmentioning

confidence: 99%

Design of planar matching loads for traveling-wave-fed SIW slot arrays

Zhao

Zhi-ping

et al. 2017

IEICE Electron. Express

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This paper presents a novel planar matching load for travelingwave-fed substrate integrated waveguide (SIW) slot arrays. The load consists of a planar grounded coplanar waveguide (GCPW) matching load and a planar GCPW to SIW transition which makes the GCPW matching load compatible with the SIW. In the GCPW matching load a high frequency resistor is used to dissipate the remaining power. A traveling-wave-fed SIW slot array with the novel load is designed, fabricated and measured. The measurement results show the proposed planar matching load performs well over a wide band 24.2-26.0 GHz, and reflection coefficient and side lobe level (SLL) of the array is significantly reduced comparing with the array with no load. Keywords: matching load, traveling-wave-fed, SIW slot array, SIW Classification: Microwave and millimeter-wave devices, circuits, and modules References[1] M. M. Zhou, et al.: "Substrate integrated slot array antenna with required radiation pattern envelope," Int.

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