Abstract
This paper demonstrates a novel highly integrated LTCC MMW passive receiving front-end which consists of antenna array, feed network and embedded band pass filter. The above passive components were co-designed as an antenna-in-package (AIP) solution for millimeter wave wireless system. Firstly, 2×2 linear patch antenna array with air cavity had been designed. Its maximum gain was increased 2.9 dB by adopting a novel embedded air cavity. Secondly, a 3-pole miniaturized hairpin filter which was composed of three double layer resonators had been co-designed with the feed network. The filter exhibits an insertion loss of 1.9 dB and a 3 dB bandwidth about 8.1% at the center frequency of 34 GHz. Finally, the above antenna and filtering network were co-designed as a 3-D wireless receiving front-end. In the integrated structure, via fences were introduced to suppress parasitic modes. The measured maximum gain of the array antenna is 14.3 dB and its impedance bandwidth (VSWR<2) is 2.8 GHz(32.9~35.7 GHz) with the filtering feed network. The excellent overall performance of the novel array antenna shows great potential as a fully integrated passive front-end solution for a Ka-band wireless system.
| Original language | English |
|---|---|
| Pages (from-to) | 6-12 |
| Number of pages | 7 |
| Journal | Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves |
| Volume | 32 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Feb 2013 |
Keywords
- 3-D integrated passive front-end system
- Antenna in package (AIP)
- High gain array antenna
- Low-temperature co-fired ceramic (LTCC)
- Millimeter-wave(MMW)
- Miniaturized bandpass filter