| 摘要 |
PROBLEM TO BE SOLVED: To provide a high frequency interruption circuit for performing the high density layout of a high frequency circuit. SOLUTION: This high frequency interruption circuit is provided with: a coupling line 30 formed of a pair of transmission lines 3 and 4 arranged in parallel with their both edges as input terminals 1, 2, 9 and 10, which has the length of 1/2 wavelength in the fundamental wave components of a high frequency signal propagating through a high frequency circuit; and open stubs 5, 6, 7 and 8 formed so as to be connected to each of the input terminals 1, 2, 9 and 10, which has the length of 1/4 wavelength in the fundamental wave components. Thus, it is possible to suppress the propagation of fundamental wave components and odd harmonic components before and after the joint of the transmission lines 3 and 4 and the open stubs 5, 6, 7 and 8, and it is possible to suppress the coupling of the fundamental wave components, the odd harmonic components, and even harmonic components in a coupling line 30 acting as a directional coupler, and it is possible to suppress the leakage of the fundamental wave components, the even harmonic components and the odd harmonic components between the input terminals 1 and 2 and the input terminals 9 and 10 faced to each other in the coupling line 30. COPYRIGHT: (C)2011,JPO&INPIT |
