Broadband and Integratable 2 × 2 TWT Amplifier Unit for Millimeter Wave Phased Array Radar
| Autor: | Zhenzhen Sun, Guo Guo, Yubin Gong, Jianwei Liu, Ruichao Yang, Zhenlin Yan, Yanyu Wei |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
TK7800-8360
Computer Networks and Communications Phased array phased array radar (PAR) Traveling-wave tube Microstrip law.invention Optics law Broadband Bandwidth (computing) traveling wave tube (TWT) Electrical and Electronic Engineering Electronic circuit Physics business.industry Amplifier 2 × 2 amplifier unit phase congruency experimental test Hardware and Architecture Control and Systems Engineering Signal Processing Extremely high frequency Electronics business |
| Zdroj: | Electronics Volume 10 Issue 22 Electronics, Vol 10, Iss 2808, p 2808 (2021) |
| ISSN: | 2079-9292 |
| DOI: | 10.3390/electronics10222808 |
| Popis: | A novel power amplifier unit for a phased array radar with 2 × 2 output ports for a vacuum electron device is proposed. Double parallel connecting microstrip meander-lines are employed as the slow-wave circuits of a large power traveling wave tube operate in a Ka-band. The high frequency characteristics, the transmission characteristics, and the beam–wave interaction processes for this amplifier are simulated and optimized. For each output port of one channel, the simulation results reveal that the output power, saturated gain, and 3-dB bandwidth can reach 566 W, 27.5 dB, and 7 GHz, respectively. Additionally, the amplified signals of four output ports have favorable phase congruency. After fabrication and assembly, transmission tests for the 80-period model are performed preliminarily. The tested “cold” S-parameters match well with the simulated values. This type of integratable amplifier combined with a vacuum device has broad application prospects in the field of high power and broad bandwidth on a millimeter wave phased array radar. |
| Databáze: | OpenAIRE |
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