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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Park, J.H. Cheon, S.J. Park, J.Y. Lim, J.T. |
| Copyright Year | 2011 |
| Description | Author affiliation: SGRTECH Co., Ltd, Gunpo city, Korea (Lim, J.T.) || Micro/Nano Devices & Packaging Laboratory, Department of Electronic Engineering, Kwangwoon University, Seoul, Korea (Park, J.H.; Cheon, S.J.; Park, J.Y.) |
| Abstract | In this paper, a highly miniaturized dual-band band pass filter using independent band stop resonators has been newly designed and fabricated by embedding all the passive lumped elements into a low-temperature co-fired ceramic (LTCC) substrate for 2.4 to 2.5 GHz (802.11b) and 5.15 to 5.85 GHz (802.11a/g) wireless LAN system applications. In order to reduce a size/volume of the filter and avoid electromagnetic parasitic couplings between the embedded passive elements, the proposed filter was designed by using $3^{rd}$ order Chebyshev circuit topology and J-inverter transformation technology. The $3^{rd}$ order Chebyshev band pass filter was firstly realized for 802.11b frequency band selection and it was transformed by using finite transmission zeros technology to minimize the electromagnetic coupling. Finally a dual-band filter was realized by constructing 802.11a/g WLAN band selection filter by adding independent band stop resonators into the 802.11b filter circuit. The measured maximum insertion losses in the lower and higher pass-bands were better than 2.0 dB and 1.3 dB with minimum return losses of 15 dB and 14 dB, respectively. The overall size/volume of the fabricated filter was 2.7 × 2.3 × 0.68 $mm^{3}$ which was the smallest one in the previously reported devices. |
| Starting Page | 2096 |
| Ending Page | 2100 |
| File Size | 1495177 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781612844978 |
| ISSN | 05695503 |
| e-ISBN | 9781612844985 |
| e-ISBN | 9781612844961 |
| DOI | 10.1109/ECTC.2011.5898807 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-31 |
| Publisher Place | Florida, USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Band pass filters Resonator filters Dual band Filtering theory Resonant frequency Wireless LAN Passive filters |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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