基于LTCC技术的C频段星载接收机混频器  

C-Band Mixer in Satellite with LTCC Technology

作　　者：黄齐波[1] 陈建荣[1] 马美霞[1] 

机构地区：[1]中国空间技术研究院西安分院,空间微波技术国家级重点实验室,西安710100

出　　处：《微波学报》2010年第1期50-53,共4页Journal of Microwaves

基　　金：国家重点实验室基金(9140C5303020704和9140C5306010708)

摘　　要：利用低温共烧陶瓷(LowTemperature Co-fired Ceramic,简称LTCC)技术,设计制作了一种可应用于C频段星载接收机的双平衡混频器。该混频器将射频和本振巴伦等无源器件集成在多层LTCC基板内,实现了电路的小型化、高集成度和高可靠性。测试表明,当射频输入为5.925～6.425GHz、本振频率为2.225GHz、中频输出频率为3.7～4.2GHz时,混频器的变频损耗≤9.3dB,P1dB为5.7dBm,本振到射频和本振到中频的隔离度分别为39.44dB和35.58dB。混频器的尺寸为40×22×1.92mm3。A C-band doubly balanced mixer, suitable for receiver on-board satellite, has been designed and fabricated using low Temperature Co-fired Ceramic （LTCC） technology. This compact circuit structure Mixer realizes higher integration levels, and higher reliability, by embedding the RF balun, the LO balun and passive elements inside a muhiplayer LTCC substrate. When the RF ranged from 5. 925GHz to 6. 425GHz, the LO fixed at 2. 225GHz and the IF ranged from 3.7GHz to 4.2GHz, the conversion loss is less than 9.3dB and the ldB compression point power is 5.7dBm. Also, the LO to RF and LO to IF isolation are 39.44dB and 35.58dB respectively. Its overall dimention is 40×22×1.92mm^3.

关 键 词：卫星通信 低温共烧陶瓷 Marchand巴伦 混频器 

分 类 号：TN773[电子电信—电路与系统]