| 摘要 |
A coupler ( 10 ) having a first line ( 1 ) and a second line ( 2 ) also comprises a resonant structure ( 3 ) including a capacitor ( 5 ) and an inductor ( 4 ). The coupler ( 10 ) thus delivers a coupling signal S 31 that is substantially frequency independent over a frequency domain above the resonance frequency of the resonant structure ( 3 ). Also, the signal S 31 has a high degree of directivity. The coupler ( 10 ) can be provided as part of an integrated electronic component, such as a multilayer substrate, a thin-film module or an IC. It can be applied in an electronic device ( 100 ) between a power amplifier ( 101 ) and an antenna ( 103 ). The coupling signal S 31 will thus be provided to a controlling circuit ( 102 ). |
