Printed Leaky-Wave Antenna With Aperture Control Using Width-Modulated Microstrip Lines and TM Surface-Wave Feeding by SIW Technology
| Autor: | Dimitris E. Anagnostou, Symon K. Podilchak, Maksim Kuznetcov, Zain Shafiq, Ladislau Matekovits, Victoria Gomez-Guillamon Buendia |
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| Rok vydání: | 2019 |
| Předmět: |
Waveguide (electromagnetism)
Aperture Leaky wave antenna Leaky-wave antennas substrate integrated waveguide surface-wave launcher width modulated lines Near and far field 02 engineering and technology Antenna measurements Microstrip Beamwidth Microstrip antenna Optics 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Physics aperture antennas microstrip antennas business.industry Astrophysics::Instrumentation and Methods for Astrophysics 020206 networking & telecommunications surface waves microstrip components Antenna (radio) business |
| Zdroj: | Kuznetcov, M, Gomez-Guillamon Buendia, V, Shafiq, Z, Matekovits, L, Anagnostou, D E & Podilchak, S 2019, ' Printed Leaky-Wave Antenna with Aperture Control using Width-Modulated Microstrip Lines and TM Surface-Wave Feeding by SIW Technology ', IEEE Antennas and Wireless Propagation Letters . https://doi.org/10.1109/LAWP.2019.2930668 IEEE Antennas and Wireless Propagation Letters |
| ISSN: | 1548-5757 1536-1225 |
| Popis: | This letter presents a width-modulated microstrip line leaky-wave antenna (LWA) with substrate-integrated waveguide and microstrip feeding. In particular, the planar antenna system consists of an integrated surface-wave launcher and three identical rows of quasi-periodic width-modulated microstrip lines for TM leaky-wave excitation, which produces a tailored binomial-like aperture distribution on the guiding surface. The behavior of the antenna when changing the width-modulated lines for different aperture distributions is also analyzed and presented. The measured LWA demonstrates a fan beam pattern in the far field with realized gain values greater than 10 dBi and with a beam direction of about $-$ 20 $^\circ$ from broadside at 23 GHz. Also, far-field measurements and near-field data indicate that the half-power beamwidth is below 10 $^\circ$ , and the position of the main beam maximum is relatively stable, i.e., ranging from about $-$ 23 $^\circ$ to $-$ 15 $^\circ$ between 23 and 24 GHz. The measured prototype is also well matched over these frequencies and $|S_{11}| $-$ 20 dB at 23.5 GHz. |
| Databáze: | OpenAIRE |
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