Calculation of optimum feed-line impedance of series-fed microstrip antennas using the image parameter method and Bloch theory
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In millimeter-wave bands, microstrip array antennas are used for various communications and sensors because of their lightweight and low cost. A series-fed method that can reduce the length of a feed line as much as feasible is preferable over a parallel feed method to reduce the loss in a microstrip array antenna. However, the characteristic impedance, which is simple to fabricate without a theoretical analysis or comprehension, is primarily chosen and applied to the feed line of the microstrip array antenna. In this paper, we propose an optimal feedline selection method for a series-fed microstrip array antenna using the image parameter method and Bloch theory, both of which are used in filter design in microwave engineering. A typical 79 GHz band series-fed microstrip array antenna has a gain of 14.7 dB with a preferred feed line of 100 Ω, whereas a gain of 17.3 dB with the characteristic impedance calculated using the image parameter method and Bloch theory. The proposed method resulted in a 1.3 dB increase in antenna gain. These results are preliminary from the simulations, and prototypes will be fabricated in the future to verify the proposed method.
Abstract
In millimeter-wave bands, microstrip array antennas are used for various communications and sensors because of their lightweight and low cost. A series-fed method that can reduce the length of a feed line as much as feasible is preferable over a parallel feed method to reduce the loss in a microstrip array antenna. However, the characteristic impedance, which is simple to fabricate without a theoretical analysis or comprehension, is primarily chosen and applied to the feed line of the microstrip array antenna. In this paper, we propose an optimal feedline selection method for a series-fed microstrip array antenna using the image parameter method and Bloch theory, both of which are used in filter design in microwave engineering. A typical 79 GHz band series-fed microstrip array antenna has a gain of 14.7 dB with a preferred feed line of 100 Ω, whereas a gain of 17.3 dB with the characteristic impedance calculated using the image parameter method and Bloch theory. The proposed method resulted in a 1.3 dB increase in antenna gain. These results are preliminary from the simulations, and prototypes will be fabricated in the future to verify the proposed method.
참고문헌 (14)
- 이상훈, "낮은 부엽준위를 위한 밀리미터파 대역 마이크로스트립 콤라인 배열안테나", 한국전자파학회 논문지, 31(10), pp.855~862 (2020), 한국전자파학회[DOI]
- Y. C. Chang, "Wideband and low profile miniaturized magneto-electric dipole antenna for 5g mmWave applications", 2020 IEEE Asia-Pacific Microwave Conference, pp.697~699 (2020)
- 이영표, "차량 레이다용 밀리미터파 광대역 직렬-갭 급전 배열 안테나 설계", 한국전자파학회 논문지, 31(4), pp.394~397 (2020), 한국전자파학회[DOI]
- Z. Cao, "Design of W-band microstrip antenna array", 2019 IEEE Asia-Pacific Microwave Conference, pp.1319~1321 (2019)
- Jiang FangFang, "Design of a miniaturized monopole antenna for UWB application", 한국마린엔지니어링학회지, 44(6), pp.482~486 (2020), 한국마린엔지니어링학회[DOI]
- J. -I. Lee, "Low sidelobe design of microstrip comb-line array antenna using deformed radiating elements in the millimeter-wave band", IEEE Transactions on Antennas and Propagation, 70(10), pp.9930~9935 (2022)
- J. -H. Lee, "Design of comb-line array antenna for low sidelobe level in millimeter-wave band", IEEE Access, 10, pp.47195~47202 (2022)
- S. Sugawa, "Low-sidelobe design of microstrip comb-line antennas using stub-integrated radiating elements in the millimeter- wave band", IEEE Transactions on Antennas and Propagation, 60(10), pp.4699~4709 (2012)
- S. Ghosh, "An inclusive survey on array antenna design for millimeter-wave communications", IEEE Access, 7, pp.83137~83161 (2019)
- A. Pandey, "Practical Microstrip and Printed Antenna Design" (2019), Artech House
- J. -H. Lee, "Series feeding rectangular microstrip patch array antenna for 77 GHz automotive radar", 2017 International Symposium on Antennas and Propagation, pp.1~2 (2017)
- A. Liu, "A single-layer series-fed microstrip array with enhanced bandwidth for automotive radar systems", 2018 IEEE International Symposium on Antennas and Propagation & USNC, 2018, 1737~1738
- S. Karuppuswami, "Design optimization of a 77 GHz antenna array using machine learning", 2021 IEEE 71st Electronic Components and Technology Conference, pp.1199~1204 (2021)
- D. M. Pozar, "Microwave Engineering", pp.388~389 (2011), John Wiley & Sons