用于阵列接收机的3mm波段辐射传感器

13th International Crimean Conference Microwave and Telecommunication Technology, 2003. CriMiCo 2003. Pub Date : 1900-01-01 DOI:10.1109/CRMICO.2003.158768

S. Kuzmin, V. Radzikhovsky

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引用次数: 0

摘要

研制了3mm波段的小型辐射传感器，作为设计多通道接收阵列的基础元件。传感器设计采用外差输入混频器电路。该传感器包括工作在双边带(DSB)模式的混频器、中频放大器(IFA)、平方律检测器和低频放大器(LFA)。锥形喇叭用于传感器的输入，作为主天线的馈源。混频器电路采用电容30 fF、电阻6欧姆的导束反平行肖特基二极管。混频器后的IFA包含三个放大级，在0.1-2.5 GHz频段增益系数为55 dB。这种结构便于在准光学天线焦平面内布置两排接收传感器阵列。因此，该传感器可用于毫米波波段短波部分被动成像系统的设计。

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3 mm waves band radiometric sensor for array receiver

In 3 mm wavelengths band the small-sized radiometric sensor has been developed as a base element for design of multichannel receiving array. The heterodyne circuit with input mixer has been chosen for sensor design. The sensor includes the mixer operating in a double-sideband (DSB) mode, intermediate frequency amplifier (IFA), square-law detector and low frequency amplifier (LFA). The conical horn is used at sensor's input as a feed of the main antenna. The mixer circuit uses beam-lead antiparallel-pair Schottky diodes of capacitance 30 fF and resistance 6 Ohm. IFA after mixer contains three amplifying stages in which the gain factor is 55 dB in 0.1-2.5 GHz frequency band. This construction is convenient for design of an array in form of two rows of receiver sensors, which are arranged in a focal plane of quasioptical antenna. Thus the sensor can find application for design of the passive imaging systems in a short-wave part of a millimeter waves band.

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来源期刊

13th International Crimean Conference Microwave and Telecommunication Technology, 2003. CriMiCo 2003.

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