| ID | 141888 |
| Title Proper | Design of reliable analog DMTL phase shifter with improved performance for KU band applications |
| Language | ENG |
| Author | Pandey, Shilpi ; Bansal, Deepak ; Jhanwar, Prachi ; Rangra, K J |
| Summary / Abstract (Note) | An analog phase shifter based on distributed MEMS transmission line (DMTL) is designed for Ku band applications. Traditional RF MEMS phase shifter comprising 6 switches has limited phase shift of 37.75° due to instability region. A new concept of stopper is incorporated to achieve high phase shift. In the present paper, optimisation of the analog phase shifter is done to increase its phase shift upto 88.63°. Phase shift is a strong function of capacitance ratio which is increased from 1.75 to 2.95. The maximum operating voltage and mechanical resonant frequency for the phase shifter are 16 V and 8.3 KHz, respectively. The switching time is calculated to 56 μs. The simulated insertion loss of the phase shifter is -1.75 dB with return loss of -20.49 dB at 17 GHz. The simulated results are verified with analytical modelling which are in close match. |
| `In' analytical Note | Defence Science Journal Vol. 65, No.5; Sep 2015: p.403-410 |
| Journal Source | Defence Science Journal 2015-10 65, 5 |
| Key Words | RF MEMS ; DMTL ; Phase Shifter ; Varactor ; KU Band Applications |