Design of a Concentric Array Radial Line Slot Antenna for High-Power Microwave Application
A compact concentric array radial line slot antenna (CA-RLSA) operating at K u -band for high-power microwave (HPM) application is proposed in this paper. The efficiency of HPM-RLSA becomes lower as the aperture size reduces due to rotational asymmetry of the illumination. The HPM-CA-RLSA was design...
Gespeichert in:
Veröffentlicht in: | IEEE transactions on plasma science 2015-10, Vol.43 (10), p.3527-3529 |
---|---|
Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | A compact concentric array radial line slot antenna (CA-RLSA) operating at K u -band for high-power microwave (HPM) application is proposed in this paper. The efficiency of HPM-RLSA becomes lower as the aperture size reduces due to rotational asymmetry of the illumination. The HPM-CA-RLSA was designed to overcome this difficulty with notable power handing capacity. It is fed by circularly polarized TE11 coaxial waveguide mode to generate a rotational symmetric cylindrical wave excitation. Furthermore, the reflection canceling structure of this HPM-CA-RLSA is not only simpler than the one in the HPM-RLSA but also improves the frequency response performance. An antenna prototype with length of 8 cm and aperture diameter of 40 cm is designed, which has a gain of 32.0 dBi, reaching an aperture efficiency of 62.7%, and an axial ratio less than 0.5 dB at 12 GHz. The simulated results show that this antenna has a power handing capacity of more than 500 MW. |
---|---|
ISSN: | 0093-3813 1939-9375 |
DOI: | 10.1109/TPS.2015.2392097 |