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Integrated design of the S-band receiver protector

Author: GaoZuo
Tutor: LiBin；RenJin
School: University of Electronic Science and Technology
Course: Electronics and Communications Engineering
Keywords: receiver protector high power integrative design of TR-tube and limiter gas discharged tube
CLC: TN858
Type: Master's thesis
Year: 2011
Downloads: 23
Quote: 0
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Abstract


Receiver protector, as an important part of the antenna switch, always used to protect the high sensitive receiver in the radar system. Passive and integrative designed receiver protector is widely used for its small size, light weight and long operating life. There is no product using integrate of TR and limiter for S-band in all our products. The paper presents an effective method and process of designing a S-band integrative receiver protector while some theories and techniques are also discussed. The main contents are following:1. The major theories, applications and the future development of the receiver protectors.2. The two parts of the design mentioned are treating the receiver protector as a microwave band pass filter in smalls signal and gas discharge forming plasma to reflect the power in high power signals . So the features of the two methods are discussed briefly.3. To explain the necessary and importance of the integrative designing receiver protector , the non-integrative TR-tube and limiter receiver protector and integrative one are compared.4. According to the features and designing methods of the band pass filter , the S-band receiver protector , as one of the normal PTRL-tube, is researched part by part as its specifications.(PTRL-tube is a pre-TR-limiter receiver protector.)5. The receiver protector is designed as parts and integrated by CST software and our engineering experiences. It is simulated by CST to make it to the required resonance frequency and the width of the band for each part which from the 1st resonant window , the 1st spark gap , the 2nd spark gap ,the 1st limiter to the 2nd limiter. Then all of them are adjusted together with a length calculated by an experience formula.6. A Pre-tube is connected in the front of the TRL-tube to make it durable for the high power , and the operating life will be extent as a result. The design of the form , features , material and thermal slugs are discussed.7. To offer some initial electrons to make the TRL part of receiver protector discharged at a higher power , some H3 is put into the tube while some different kinds of gases are used too.8. Discuss the techniques of making the products and the testing systems.9. Pesents the conforming products’applications and the problem still remained.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Receiver equipment, radio Radio > Various frequency radio
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