A digital sum-difference millimeter wave monopulse system based on microstrip array antenna

Author

Xu, Qiang ; Sun, Houjun ; Yang, Huaizhi ; Lu, Xin

Author_Institution

Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

In this paper, a digital sum-difference monopulse system based on four-subarray microstrip antenna is presented. In transmitting, a high gain transmitting beam is obtained from spatial power combining. Gain of transmitting beam is better than 29.5dB. In receiving, we remove sum and difference network. Sum and difference signals are obtained by addition and subtraction operations of signals received from microstrip antenna with four subarrays. Noise figure of four-channel receiver is ameliorated by removing millimeter wave sum-difference network. Phase balances between the four transmitting channels are adjusted by dielectric loaded method[l]. Amplitude and phase imbalances between receiving channels are compensated in signal processing module.

Keywords

microstrip antenna arrays; millimetre wave antenna arrays; amplitude imbalances; dielectric loaded method; digital sum-difference monopulse system; four-channel receiver; gain 29.5 dB; microstrip antenna; microstrip array antenna; millimeter wave system; phase imbalances; signal processing module; spatial power combining; transmitting beam; Azimuth; Boring; Circuits; Direction of arrival estimation; Directive antennas; Equations; Microstrip antenna arrays; Microstrip antennas; Millimeter wave technology; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Conference_Location

Macau

Print_ISBN

978-1-4244-2641-6

Electronic_ISBN

978-1-4244-2642-3

Type

conf

DOI

10.1109/APMC.2008.4957876

Filename

4957876