A compact composite right/left-handed leaky wave scanning antenna
- 5 University of Lille (Villeneuve-d'Ascq, France)
Abstract
Statement of the problem. Under one-sided excitation of the leaky-wave antenna aperture (LWA), developed on the basis of traditional right-handed transmission line (positive magnetic permeability and permittivity) due to Bragg diffraction, it is extremely difficult to provide a continuous scanning sector, including the direction of normal to the aperture.
Purpose of work. Verify the efficiency of the Bragg diffraction elimination technique and develop a compact composite right/lefthanded (CRLH) LWA.
Results. The CRLH unit-cell is synthesized on the basis of half-wave substrate-integrated waveguides (HMSIW) technology by introducing of one double square complementary split-ring resonator (CSRR) mounted on the top wall of the HMSIW. A technique for optimizing the dispersion characteristics of the unit-cell has been developed according to the frequency characteristics of the Sparameters, obtained in full-wave simulation, and using the original equivalent circuit, representing the structure of the designed cell. The optimal number of balanced unit-cells is found, for which the required gain and efficiency of LWA are achieved.
Practical significance. The use of CRLH and, in particular, a transmission line based on the developed unit-cell makes it possible to design compact and efficient LWAs with a continuous scanning sector and directional pattern in a sector of 90° and even more. Acknowledgments. The reported study was funded by RFBR and CNRS, project number 20-51-15001.
- Received
- 23.04.2021
- Approved after review
- 11.05.2021
- Accepted
- 28.05.2021
How to cite
Антипов С.А., Калинин Ю.Е., Останков А.В., Хрипунов Е.Г., Дашян С.Ю. Компактная антенна вытекающей волны со сканированием диаграммы направленности на основе композитных право- и левосторонних структур // Радиотехника. 2021. Т. 85. № 6. С. 34−39. DOI: https://doi.org/10.18127/j00338486-202106-06
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