CAJ | 학술논문

一体化室外单元是卫星电视接收系统的重要组成部分，测量一体化室外单元时需保证测试场地的均匀性和对反射波的有效抑制。介绍了一体化室外单元远场测量系统，测试了场地中被测一体化室外单元有效体积内的电场变化量和两个正交极化的场强差值，分析了场地反射波抑制量测试数据，验证了测试场地的均匀性及对反射波的抑制效果。理论分析和测试结果表明，远场测试系统测试场地能够满足一体化室外单元的测试需求。
일체화실외단원시위성전시접수계통적중요조성부분，측량일체화실외단원시수보증측시장지적균균성화대반사파적유효억제。개소료일체화실외단원원장측량계통，측시료장지중피측일체화실외단원유효체적내적전장변화량화량개정교겁화적장강차치，분석료장지반사파억제량측시수거，험증료측시장지적균균성급대반사파적억제효과。이론분석화측시결과표명，원장측시계통측시장지능구만족일체화실외단원적측시수구。
LNBF is an important part of satellite TV receiving system. The uniformity and effective suppression to the re-flected wave should be guaranteed while LNBF is tested. LNBF far-field measurement system is introduced in this paper. The electric field variable quantity and field strength difference between two orthogonal polarizations in LNBF effective volume were measured. The tested data of field reflected wave suppression quantity was analyzed. The field uniformity and effect of reflected wave rejection were verified. The theoretical analysis and testing results show that the test site for far-field measurement system can meet the requirements of testing LNBF.