A 1.2–1.6-GHz Substrate-Integrated-Waveguide RF MEMS Tunable Filter
| Autor: | Vikram Sekar, Kamran Entesari, M Armendariz |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Engineering
Waveguide filter Voltage-controlled filter Radiation business.industry Low-pass filter 020208 electrical & electronic engineering Electronic filter topology Electrical engineering 020206 networking & telecommunications 02 engineering and technology Condensed Matter Physics Band-pass filter 0202 electrical engineering electronic engineering information engineering Optoelectronics Prototype filter Electrical and Electronic Engineering business High-pass filter Active filter |
| Zdroj: | IEEE Transactions on Microwave Theory and Techniques. 59:866-876 |
| ISSN: | 1557-9670 0018-9480 |
| Popis: | This paper presents a high-performance substrate-integrated-waveguide RF microelectromechanical systems (MEMS) tunable filter for 1.2-1.6-GHz frequency range. The proposed filter is developed using packaged RF MEMS switches and utilizes a two-layer structure that effectively isolates the cavity filter from the RF MEMS switch circuitry. The two-pole filter implemented on RT/Duroid 6010LM exhibits an insertion loss of 2.2-4.1 dB and a return loss better than 15 dB for all tuning states. The relative bandwidth of the filter is 3.7 ± 0.5% over the tuning range. The measuredQuof the filter is 93-132 over the tuning range, which is the best reportedQin filters using off-the-shelf RF MEMS switches on conventional printed circuit board substrates. In addition, an upper stopband rejection better than 28 dB is obtained up to 4.0 GHz by employing low-pass filters at the bandpass filter terminals at the cost of 0.7-1.0-dB increase in the insertion loss. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|