The chirp Fuze RF circuit and antenna design
|School||Nanjing University of Technology and Engineering|
|Course||Electromagnetic Field and Microwave Technology|
|Keywords||Linear FM Triangle wave ADS simulation RF front-end Microstrip antenna|
Fuze is timely detonation of a variety of ammunition to use objective information control device , is an important and indispensable part of weapons systems . The Fuze plays an increasingly important role in modern warfare . FM the radio fuze transmitting FM such sites with a continuous wave signal, the frequency of its transmission signal by the law of modulation signal changes, the difference in frequency of the echo signal with the transmitted signal to determine the distance between the projectile and target . Chirp fuze has high accuracy ranging , anti-interference ability , suitable for short range detection . This paper first introduces the working principle of the linear frequency modulation Fuze , difference frequency signal chirp fuze theoretical analysis , analysis based on the selection criteria of the parameters of the triangle wave chirp fuze . Finally, the ADS the chirp fuze system simulation , and gives a linear frequency modulated the Fuze RF front-end schematic design diagram . Chirp the distance of the the fuze RF front-end block diagram the chirp fuze RF front-end circuit theory analysis , and the use of ADS simulation designed to meet system design specifications for each part of the circuit . Both microstrip antenna using HFSS software design , a circular microstrip antenna to another conformal microstrip antenna , two antennas are used for different occasions . Finally, the layout of the the AUTOCAD software design RF front-end circuit and antenna , then produced and debugging circuits , and comparative analysis with the results of the simulation proposed deviation of the causes and improvement measures .