Integrated heterodyne array receiver of millimeter and sub-millimeter wave bands

Abstract

The invention belongs to a radio receiver system and particularly provides a large-scale and high-integration level array receiving module working at a millimeter or sub-millimeter wave band and a receiver integrated by the module. The integrated heterodyne array receiver breaks through the limitation of the original splicing technology, achieves the array with a larger scale and a high integration level, and can obviously improve the entire uniformity and reliability, and the device can easily achieve function expansion. The technology difficulty can be limited at a sub-array level because the sub-array of the integrated heterodyne array receiver is composed of N two-dimensional arrays with the same isosceles trapezoid outlines, and the array which is N times of the sub-array in scale can be achieved without obviously increasing the technology difficulty.

Description

technical field [0001] The invention belongs to a radio receiving system, in particular to a large-scale and highly integrated array receiver system working in millimeter wave and submillimeter wave frequency bands. Background technique [0002] Multi-pixel detection technology with spatial imaging capabilities is widely used in optical and infrared bands (such as CCD cameras). With the rapid growth of imaging requirements in fields such as astronomical observation and aerospace remote sensing, the importance of array receiver technology in microwave, millimeter wave, submillimeter wave and other bands has become increasingly prominent. [0003] According to the receiver's spectral resolution capability, array receivers are divided into two basic types: heterodyne receivers with high spectral resolution capabilities and non-coherent receivers with imaging but lack of spectral resolution capabilities. The latter only receives the strength of the signal and loses the precise ...

AI Technical Summary

Problems solved by technology

However, this method still has obvious shortcomings: one-dimensional sub-arrays lack equivalent characteristics (divided into outer sub-arrays and inner sub-arrays), so the entire array lacks symmetry, and the scalability of the array is limited; due to heat transfer and mechanical reliability The length of the one-dimensional array is restricted, which also limits the maximum number of pixels; this method does not support waveguide-type local oscillator distribution, and the local oscillator distribution has to adopt a quasi-optical method, resulting in a large receiver system that cannot Enabling compact large-scale arrays

Images