FRESNEL-ZONE PLATE AIDS LOW-COST DOPPLER DESIGN.

被引：0
|
作者：
Lazarus, Max J.
Silvertown, Adrian
Novak, Stanley
机构：
来源：
Microwaves New York, N.Y. | 1979年 / 18卷 / 11期
关键词：
ANTENNAS; -; Radar; OSCILLATORS; GUNN;
D O I：
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中图分类号：
学科分类号：
摘要：
Design of a low-cost Doppler homodyne radar is outlined. It employs Gunn diode which acts as the transmitter, the local oscillator, and the mixer. Fresnel half-period zones are cut from a plastic sheet. The radiated field is built by superimposing all of the wavelets. The plastic zone plates can be mass produced using plastic molding methods, and are used as quasi-optical lenses for the collimation and focusing of the radar beam.
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页码：78 / 80
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