DOI QR코드

DOI QR Code

A Ka-band 8-channel TX Active Module Design for Active Phased Array Antenna

능동위상배열 안테나를 위한 Ka-대역 8채널 송신능동모듈 설계

  • Jung, Young-Bae (Dept. of Electronics and Control Engineering, Hanbat National University)
  • Received : 2013.05.28
  • Accepted : 2013.06.03
  • Published : 2013.06.30

Abstract

This paper presents the 8-channel active module operated in Ka-band. The module is designed for the mobile satellite communication antenna systems, and the module structure has the merit to minimize the size and weight of the antenna systems by 30% compared with the conventional systems using the active module composed of single channel. This module was designed to be optimally operated by prohibiting the electrical interference among the individual channels. From the test results of the fabricated 8-channel active module, it can be confirmed that the maximum channel gain error is ${\pm}1.3dB$, the minimum channel output power is 21.5dBm, and the maximum gain variation by phase control is ${\pm}1.0dB$.

본 논문에서는 Ka-대역에서 동작하는 8채널 송신능동채널모듈을 소개한다. 본 모듈은 이동 위성통신용 능동위상배열안테나 시스템에 적용되며, 이를 위하여, 시스템의 크기와 중량의 상당부분을 차지하는 능동부 구조를 최적화하여 개별채널로 구성되는 기존의 능동모듈에 비하여 크기 및 중량을 소형화할 수 있다는 장점을 갖는다. 또한, 한 개의 모듈에 다수의 능동채널을 구비함으로써 발생될 수 있는 채널 간의 전기적 간섭을 최소화함으로써, 구성된 개별 채널이 최적의 상태에서 동작하도록 하였다. 시제품의 성능시험을 통한 채널 간의 최대 이득편차는 ${\pm}1.3dB$이며, 최소 채널출력은 21.5dBm이며, 위상천이기 제어에 따른 채널이득 변화량은 ${\pm}1.0dB$이다.

Keywords

References

  1. Young-Bae Jung, "Multi-channel module design for mobile satellite communications," Asia-Pacific Conference on Communication (APCC), pp. 510-512, Oct. 2012
  2. A. Y. Grinev and et al, "Multi-channel Ground Penetrating Radar Based on Ultra-wideband Short-pulse Signal; Hardware and software," International conference on Ground Penetrating Radar(GPR), pp. 1-6, June 2010
  3. Young-Bae Jung and et al, "T/RX Channel Design of X-band Shipboard APAA System for Mobile Communications via Satellite," European Microwave Conference (EuMA), pp. 527-530, Oct. 2003
  4. Young-Bae Jung and et al, "The design of T/R module for X-band APAA system used in satellite communications," IEEE MTT-S International Microwave Symposium. vol. 2, pp. 1337-1340, June 2002
  5. Peng Wang and et al, "FMCW Radar Imaging with Multi-channel Antenna Array via Sparse Recovery Technique," International Conference on Electrical and Control Engineering (ICECE), pp. 1018-1021. June 2010