| 摘要: |
| 基于低温共烧陶瓷（LTCC）技术与传统的贴片天线，设计了一种S频段新型耐高温天线。该
天线充分发挥了LTCC材料良好的耐高温性能，能够承受的最高温度可达400℃左右。通过两层耦合贴片
的设计方法，使天线可以工作在一个较宽的频率范围内，解决了高介电常数引起的窄带工作
和高温导致的谐振频率偏移问题。同时，微带馈线部分通过阶梯阻抗变换，降低了天线的回
波损耗，提高了端口的匹配效率。仿真结果表明，当天线工作的中心频率为2.67 GHz、
工作环境温度为25℃到400℃时，可用带宽为100 MHz，且辐射方向性稳定。 |
| 关键词: S频段天线 耐高温 低温共烧陶瓷 耦合贴片 |
| DOI： |
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| 基金项目: |
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| Design of an S-band novel high temperature antenna based on LTCC |
| LIU Xiu-xiang,QIN Yong-qiang,ZHAO Liang,ZENG Gui-ming |
| () |
| Abstract: |
| An S-band novel high temperature antenna is presented based on low temperature
co-fired ceramic(LTCC) an
d conventional patch antenna. The maximum temperature which the antenna can with
stand is about 400℃ via the good temperature performance of LTCC material. With
two layers of coupled patches antenna can operate in broad bandwidth, which sol
ves the problems of narrow bandwidth and resonant frequency offset. By stepped i
m
pedance transformer, the return loss is reduced and the match efficiency is impr
oved. Simulation results show that the antenna bandwidth is
100 MHz and the radiation pattern is stable, when the operating frequency i
s 2.67 GHz and the temperature range is from 25℃ to 400℃. |
| Key words: S-band antenna high temperature low temperature co-fired ceramic coupled patch |
