A Compact Contactless Coaxial VHF Rotary Joint for Surveillance Radar
| Autor: | Tung N. V. Dinh |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Acoustics 020206 networking & telecommunications Choke 02 engineering and technology Condensed Matter Physics Inductor law.invention law 0202 electrical engineering electronic engineering information engineering Return loss Insertion loss Electrical and Electronic Engineering Coaxial Radar Secondary surveillance radar Electrical impedance |
| Zdroj: | IEEE Microwave and Wireless Components Letters. 29:17-19 |
| ISSN: | 1558-1764 1531-1309 |
| DOI: | 10.1109/lmwc.2018.2881541 |
| Popis: | A new design of coaxial rotary joint (RJ) made compact by applying “folded” choke quarter-wave impedance transformer is proposed for very high-frequency surveillance radar. The final prototype, which measures L $388\,\,\text {mm} \times \text {D}\,\,106$ mm, demonstrated 0.04-dB insertion loss and 28-dB return loss within the operating frequency range of 150–170 MHz. The RJ is able to handle peak power of 15 kW during experiments. By avoiding reliability issues inherent in contacting RJ, the lifetime and stability of the whole radar system would be remarkably enhanced. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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