Monopulse Antenna in SIW Technology for Beam Steering Applications
| Autor: | Dimitris E. Anagnostou, Symon K. Podilchak, Zain Shafiq |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Waveguide (electromagnetism)
Computer science Acoustics 020208 electrical & electronic engineering Beam steering 020206 networking & telecommunications 02 engineering and technology Microstrip law.invention Microstrip antenna Planar Monopulse radar law 0202 electrical engineering electronic engineering information engineering Antenna (radio) Radar |
| Zdroj: | 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting. |
| Popis: | Series-fed slot arrays using substrate integrated waveguide (SIW) technology are reported in which the sum and difference patterns are steered to a desired beam angle in the far-field. Applications include radar, localization, and new target detection algorithms where beam steering designs are of interest. In the paper, the design methodology and steering approach for two antenna prototypes is discussed. Initially, simulations and measurements of a single-element antenna for monopulse are described. This planar SIW antenna is matched to $50-\Omega$ and is defined by two-sided, microstrip end-launch feeding. A series-fed array of slots is realized defining a total antenna structure which employs sub-arrays and with two input ports for each sub-array element. Concepts are extended to a 4-port structure, defining a new monopulse array, which offers sum pattern control along with null steering for the monopulse pattern. The simulations and measurements show proof of concept for the developed monopulse antennas at 24 GHz. The design approach is also applicable to other planar antennas and arrays which operate at microwave and millimeter-wave frequencies where pattern maximum and null steering for the sum and difference patterns is of interest. |
| Databáze: | OpenAIRE |
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