Longitudinal slotted waveguide antenna with a wide frequency sweep angle
118 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.FEE.2023.92-96Keywords:
Waveguide antenna; Vertical slot; Amplitude distribution; Extended finite element method.Abstract
The article analyzes and synthesizes slotted longitudinal-waveguide antennas so that, at the same time, it is possible to overcome the phenomenon of reflected resonance, when the main beam is perpendicular to the waveguide (f = 17.3 GHz), and create a uniform distribution of amplitudes along the antenna at two different frequencies, to expand the sectors of frequency scanning (f = 19.6 GHz). The waveguide antenna has a rectangular shape, contains a dielectric material made of Rogers RO4003 (ε = 3.55), on the long side of the rectangular box, there are pairs of longitudinal slots distributed along the waveguide. The calculation results show that it is possible to simultaneously overcome the reflected resonance when the main beam is perpendicular to the waveguide and synthesize a uniform amplitude distribution along the waveguide at two different frequencies. The synthesis increased the gain of the antenna by 0.8 dB at 17.3 GHz and by 2.8 dB at 21.5 GHz. At the same time, the sectors of frequency scanning after synthesis (58 degrees) are also wider than before synthesis (50 degrees).
References
[1]. Уолтер К. “Антенны бегущей волны” // под ред. А. Ф. Чаплина. – М.: Энергия. – (1970).
[2]. Калошин В. А. “Антенны миллиметровых волн” // Зарубежная радиоэлектроника. №11. С.81- 96. (1984).
[3]. Мануилов М. Б., Лерер В. А., Синявский Г. П. “Методы расчета и новые применения волноводно-щелевых антенных решеток” // Успехи современной радиоэлектроники. №5. С. 3-28. (2007).
[4]. Банков С. Е. “Антенные решетки с последовательным питанием” // – М., Физматлит. (2013).
[5]. Калошин В. А., Ле Д. Т., “Фролова Е. В. Волноводно-щелевая антенна с широким сектором частотного сканирования” // Журнал радиоэлектроники. №3. (2020). DOI: https://doi.org/10.30898/1684-1719.2020.3.9
[6]. Imane Serhsouh, Mohamed Himdi, Hassan Lebbar, Hamsakutty Vettikalladi, “Reconfigurable SIW Antenna for Fixed Frequency Beam Scanning and 5G Applications” // IEEE Access. IEEE. V. 8. pp.60084-60089. (2020). DOI: https://doi.org/10.1109/ACCESS.2020.2983001
[7]. Yuanxi Cao, Sen Yan, “Multi-beam SIW leaky-wave antenna with 2-D beam scanning capability for millimeter-wave radar applications” // Int J RF Microw Comput Aided Eng. V. 1. (2021).
[8]. Saeed Kamalzadeh, Mohammad Soleimani, “Multibeam SIW Leaky-Wave Antenna with Beam Scanning Capability in Two Dimensions”, Electronics. V. 11. (2022). DOI: https://doi.org/10.3390/electronics11152315
[9]. Калошин В. А., Ле Д. Т., “Волноводно-щелевая антенна с сектором частотного сканирования 180 градусов” // Журнал радиоэлектроники. №4. (2020). DOI: https://doi.org/10.30898/1684-1719.2020.4.1
[10]. Калиничев В. И. “Анализ и синтез волноводно-щелевой антенны с заданным амплитудным распределением” // Журнал радиоэлектроники. №12. (2015).
