[天线]Frequency-Tunable High-Power Mesoband Microwave Radiator

Frequency-Tunable High-Power Mesoband Microwave Radiator 9KT85t1#  
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Abstract—This paper presents a frequency-tunable high-power k^B7M}  
mesoband microwave radiator that uses a switched quarter- z,@R jaX  
wavelength oscillator and a patch antenna. The oscillator is rJtk4hOF  
charged and then switched by an annular electrode between the in- 31M'71s  
ner and outer conductors. The length of the oscillator is adjustable
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by moving the electrode in order to generate different frequency JE@3UXg
  
resonances. A coupler with a quasi-constant coupling coefficient nDLiER;U  
was employed to output a high-power mesoband microwave. A 9\E];~"iP  
novel high-power wideband patch antenna with a bandwidth M0)ZJti  
of 64% and a maximum gain of 8.1 dB was used to radiate ;Yg/y  
the generated mesoband microwave. The experimental results of O`PQ4Q*F  
the radiation factor were as high as 182 kV at 333 MHz, and the w*(1qUF#%  
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