| 摘要 |
The present invention relates to a tunable coupler and a tunable coupler using a strip line. More particularly, a 3dB or 10dB coupler with a smaller area is formed without needing an additional bonding wire process. A coupling coefficient is controlled by transferring two substrates in parallel. A coupler combined with a CPW or micro strip line is independently slid. Thereby, the coupling coefficient is controlled. |
