摘要:
There is included: N (N≧2) resonators formed by laminating a plurality of conductor patterns and dielectric layers alternately and arranged in an at least partially overlapped manner when viewed in the laminating direction to be coupled electromagnetically to each other; and input and output lines 3 and 4 coupled, respectively, to two resonators 1 and 2 selected among the N resonators, in which one end of each of the N resonators is grounded, and the length of each of the N resonators in the signal propagation direction is basically λ/4, where λ represents a propagation wavelength inside the dielectric layers at approximately the center frequency of the pass band. A wider pass bandwidth, size and loss reduction, and a large amount of attenuation within a narrow band can be achieved.
摘要:
There is included: N (N≧2) resonators formed by laminating a plurality of conductor patterns and dielectric layers alternately and arranged in an at least partially overlapped manner when viewed in the laminating direction to be coupled electromagnetically to each other; and input and output lines 3 and 4 coupled, respectively, to two resonators 1 and 2 selected among the N resonators, in which one end of each of the N resonators is grounded, and the length of each of the N resonators in the signal propagation direction is basically λ/4, where λ represents a propagation wavelength inside the dielectric layers at approximately the center frequency of the pass band. A wider pass bandwidth, size and loss reduction, and a large amount of attenuation within a narrow band can be achieved.
摘要:
Disclosed is a bandpass filter comprising a first resonator 1 to a sixth resonator 6 having lengths of basically ¼ wavelength, an input section IN connected to an ungrounded end of the first resonator, and an output section OUT connected to an ungrounded end of the sixth resonator, wherein the second to fifth resonators 2-5 are electromagnetically coupled with each other, the second and the third resonators are respectively coupled to the first resonator via the first and the second capacitances C1,C2, the third and the fourth resonators are respectively coupled to the sixth resonator via the third and the fourth capacitances C3,C4, and the input section IN and output section OUT are coupled to the first resonator and sixth resonator through an input and output capacitances C5, C6, respectively. This bandpass filter can be a small size, low loss filter suitable for UWB (Ultra Wide Band).
摘要:
A high frequency module according to the present invention comprises a laminate board having a plurality of dielectric layers (11 to 18) stacked one on another, a branch filter circuit (DIP10) for separating a plurality of transceiver systems from each other, switch circuits (SW10, SW20) for switching the respective transceiver systems between transmitter branches (TX) and receiver branches (RX), power amplifiers (AMP10, AMP20) each comprising a matching circuit (MAT10, MAT20) and a high frequency amplification semiconductor device for amplifying a transmission signal having a frequency within a pass band of each of the transmitter branches (TX), and couplers (COP10, COP20) for monitoring outputs.
摘要:
Disclosed is a bandpass filter comprising a first resonator 1 to a sixth resonator 6 having lengths of basically ¼ wavelength, an input section IN connected to an ungrounded end of the first resonator, and an output section OUT connected to an ungrounded end of the sixth resonator, wherein the second to fifth resonators 2-5 are electromagnetically coupled with each other, the second and the third resonators are respectively coupled to the first resonator via the first and the second capacitances C1,C2, the third and the fourth resonators are respectively coupled to the sixth resonator via the third and the fourth capacitances C3,C4, and the input section IN and output section OUT are coupled to the first resonator and sixth resonator through an input and output capacitances C5, C6, respectively. This bandpass filter can be a small size, low loss filter suitable for UWB (Ultra Wide Band).