| 摘要 |
PROBLEM TO BE SOLVED: To provide a high frequency circuit which can realize a miniaturization while the deterioration of filter characteristic is suppressed. SOLUTION: The high frequency circuit 100 has a filter 30 which has an attenuation pole, and an inductor 10 (11, 12) provided in both ends of the filter 30. When there is no attenuation pole between the passbands and the rejection band zones in the filter 30 when the inductor 10 is not formed, the inductor 10 (11, 12) is arranged so that the mutual inductor (M) may serve as negative. When the attenuation pole is between the passbands and rejection band zones in the filter 30 when the inductor 10 is not formed, the inductor 10 (11, 12) is arranged so that the mutual inductor (M) of the inductor 10 (11, 12) may serve as positive in the inductor 10 (11, 12) in both ends. COPYRIGHT: (C)2006,JPO&NCIPI
|
