Design of Substrate Integrated Coaxial Line (SICL) Fed Planar Quasi-Yagi Antenna for Millimeter Wave Application
16 Jul 2018-pp 120-123
TL;DR: A printed Quasi-Yagi Antenna with a new feed, Substrate Integrated Coaxial Line (SICL) working in the millimeter wave frequency range is presented, which reduces the complexity of the feeding network and makes it compact.
Abstract: A printed Quasi-Yagi Antenna with a new feed, Substrate Integrated Coaxial Line (SICL) working in the millimeter wave frequency range is presented. This new feeding technique makes the antenna design simple, surpasses the need to have balun and reflector. The antenna design presented here operates at 28GHz with a frequency band of 6.8 GHz, providing a gain of 7.2dBi and front to back ratio of better than 9dB. The SICL section exhibits good shielding ability which is advantageous for circuits implemented in millimeter wave frequency range. It also enhances the performance of the antenna by providing a shielding to feed network. It also reduces the complexity of the feeding network and makes it compact. This antenna is suited for millimeter wave automotive radar application operating at K Band (18–26 GHz).
Citations
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29 May 2022
TL;DR: In this paper , the authors presented step by step novel technique to improve the Front to Back Ratio (FTBR) of Substrate Integrated Coaxial Line (SICL) based cavity backed slot antenna.
Abstract: This paper presents step by step novel technique to improve the Front to Back Ratio (FTBR) of Substrate Integrated Coaxial Line (SICL) based cavity backed slot antenna (CBSA). The design consists of three linear 45° inclined slot etched on the bottom plate of cavity. The proposed slot configuration excites ${\text{TE}}_{110(odd)}^z$ mode which helps the proposed three λ g /4 slots to radiate in a unique way such that a higher order mode $\operatorname{TE} _{110(odd)}^z$ is excited and the surface current is disturbed by the proposed slot configuration which results in electromagnetic radiations. The novelty of the work lies in exciting the slot antenna with new higher order cavity mode to get better FTBR. The proposed antenna exhibits measured FTBR of 25 dB and gain of 4.2 dBi with co-pol to cross-pol ratio of 17 dB. This novel method is the simplest known low profile technique that efficiently utilizes SICL cavity modes to improve FTBR while maintaining compactness of the antenna design.
1 citations
DOI•
29 May 2022
TL;DR: In this paper , the authors presented step by step novel technique to improve the Front to Back Ratio (FTBR) of Substrate Integrated Coaxial Line (SICL) based cavity backed slot antenna.
Abstract: This paper presents step by step novel technique to improve the Front to Back Ratio (FTBR) of Substrate Integrated Coaxial Line (SICL) based cavity backed slot antenna (CBSA). The design consists of three linear 45° inclined slot etched on the bottom plate of cavity. The proposed slot configuration excites ${\text{TE}}_{110(odd)}^z$ mode which helps the proposed three λg/4 slots to radiate in a unique way such that a higher order mode $\operatorname{TE} _{110(odd)}^z$ is excited and the surface current is disturbed by the proposed slot configuration which results in electromagnetic radiations. The novelty of the work lies in exciting the slot antenna with new higher order cavity mode to get better FTBR. The proposed antenna exhibits measured FTBR of 25 dB and gain of 4.2 dBi with co-pol to cross-pol ratio of 17 dB. This novel method is the simplest known low profile technique that efficiently utilizes SICL cavity modes to improve FTBR while maintaining compactness of the antenna design.
1 citations
References
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Book•
01 Jun 1979
TL;DR: In this article, the authors present a quasi-static analysis of an Enclosed Microstrip and a Slot-Coupled Microstrip Line, as well as a fullwave analysis of Discontinuity Inductance Evaluation.
Abstract: Microstrip Lines I: Quasi-Static Analyses, Dispersion Models, and Measurements -Introduction. Quasi-Static Analyses of a Microstrip. Microstrip Dispersion Models. Microstrip Transitions. Microstrip Measurements. Fabrication. Microstrip Lines II: Fullwave Analyses, Design Considerations, and Applications - Methods of Fullwave Analysis. Analysis of an Open Microstrip. Analysis of an Enclosed Microstrip. Design Considerations. Other Types of Microstrip Lines. Microstrip Applications. Microstrip Discontinuities I: Quasi-Static Analysis and Characterization -Introduction. Discontinuity Capacitance Evaluation. Discontinuity Inductance Evaluation. Characterization of Various Discontinuities. Compensated Microstrip Discontinuities. Microstrip Discontinuities II: Fullwave Analysis and Measurements - Planar Waveguide Analysis. Fullwave Analysis of Discontinuities. Discontinuity Measurements. Slotlines -Introduction. Slotline Analysis. Design Considerations. Slotline Discontinuities. Variants of Slotline. Slotline Transitions. Slotline Applications. Defected Ground Structure (DGS) -Introduction. DGS Characteristics. Modeling of DGS. Applications of DGS. Coplanar Lines: Coplanar Waveguide and Coplanar Strips -Introduction. Analysis. Design Considerations. Losses in Coplanar Lines. Effect of Tolerances. Comparison with Microstrip Line and Slotline. Transitions. Discontinuities in Coplanar Lines. Coplanar Line Circuits. Coupled Microstrip Lines -Introduction. General Analysis of Coupled Lines. Characteristics of Coupled Microstrip Lines. Measurements on Coupled Microstrip Lines. Design Considerations for Coupled Microstrip Lines. Slot-Coupled Microstrip Lines. Coupled Multiconductor Microstrip Lines. Discontinuities in Coupled Microstrip Lines. Substrate Integrated Waveguide (SIW) -Introduction. Analysis Techniques of SIW. Design Considerations. Other SIW Configurations. Transitions Between SIW and Planar Transmission Lines. SIW Components and Antennas. Fabrication Technologies and Materials.
2,182 citations
"Design of Substrate Integrated Coax..." refers background in this paper
...The guided wavelength λeff is expressed by the relation given in [4]...
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01 Sep 2006
TL;DR: In this article, a Lange coupler with operation bandwidth of 66% was used in a multi-port Impulse Radio for ultra wide band applications. And the same technology results particularly suitable to realize passive components for wideband applications.
Abstract: A novel substrate integrated coaxial line (SICL) is presented and experimentally verified in this paper This structure exhibits unimodal operation over a wide frequency band, is shielded and not dispersive, can be fabricated by using simple, low-cost thin?film process, and can be easily integrated with active devices Moreover, the same technology results particularly suitable to realize passive components for wideband applications The design of a Lange coupler with operation bandwidth of 66%, to be used in a Multi-port Impulse Radio for Ultra Wide Band applications, is reported
164 citations