A Narrow-Band Superconducting Filter Using Spirals with a Reversal in Winding Direction
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
A resonator consisting of a microstrip spiral, with a reversal in winding direction, is used for a narrowband superconducting filter. The fields are tightly confined, leading to the required small coupling coefficients, without a large separation between resonators. Nevertheless, tunability and power-handling capacity are better than some other resonators with localized fields. A quality factor exceeding a million was achieved. A 148 MHz, 0.1% bandwidth sixth-order quasi-elliptic filter is demonstrated.
|Number of pages||6|
|Journal||IEEE Transactions on Microwave Theory and Techniques|
|Publication status||Published - 1 Nov 2006|
- narrowhand, spiral, superconducting, filters