公开(公告)号：JPH0348921U

公开(公告)日：1991-05-13

申请号：JP11068889

申请日：1989-09-20

IPC: H01P1/201 ,  H03H11/12

公开(公告)号：JPS6422101A

公开(公告)日：1989-01-25

申请号：JP15245288

申请日：1988-06-22

Applicant: RUTSUKU RIBIEERU ,  CARENCO ALAIN

Inventor： RUTSUKU RIBIEERU ,  ARAN KARENKO

IPC: H01P5/08 ,  H01P1/201 ,  H01P3/08

Abstract: PURPOSE: To increase a valid frequency band by configuring one of two conductor wires forming a transmission line with a narrow strip line, two terminals, a wide strip line and a cavity formed inbetween so as to facilitate the connection to a connector. CONSTITUTION: A microwave transmission line is provided with 1st and 2nd conductors 1, 2 fixed on a base 3 made of a dielectric material. The 1st conductor 1 is configured only with a narrow strip line 11, the 2nd conductor wire 2 is made up of a narrow strip line 21, two rectangular end faces 22, 23, and a wide strip line 24 and the end faces 22, 23 are connected to a connector connecting a symmetrical line consisting of the strip lines 11, 21 to a coaxial line. Furthermore, a cavity 25 is formed to the conductor wire 2 and since the resonance frequency of the cavity 25 blocks a low frequency standing wave by the resonance of the symmetrical line consisting of the strip lines 11, 21, the cavity 25 acts like a specific low pass filter and the valid frequency band of the transmission line is enhanced.

公开(公告)号：JPS6327442Y2

公开(公告)日：1988-07-25

申请号：JP6986382

申请日：1982-05-12

IPC: H03H7/01 ,  H01P1/20 ,  H01P1/201 ,  H01P7/00

公开(公告)号：JPS5929361Y2

公开(公告)日：1984-08-23

申请号：JP16997878

申请日：1978-12-11

IPC: H01F27/28 ,  H01P1/20 ,  H01P1/201 ,  H03H7/01

公开(公告)号：JPS58182501U

公开(公告)日：1983-12-05

申请号：JP7689382

申请日：1982-05-27

IPC: H03H7/01 ,  H01P1/20 ,  H01P1/205 ,  H01P1/201 ,  H03H7/12

公开(公告)号：JPS5893003U

公开(公告)日：1983-06-23

申请号：JP18860881

申请日：1981-12-16

IPC: H03H7/01 ,  H01P1/20 ,  H01P1/201

公开(公告)号：JPS5827525Y2

公开(公告)日：1983-06-15

申请号：JP9807778

申请日：1978-07-17

IPC: H01P7/00 ,  H01P1/20 ,  H01P1/201

公开(公告)号：JPS5899004A

公开(公告)日：1983-06-13

申请号：JP19808981

申请日：1981-12-08

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： FUJI TSUNEJI ,  TSUMURA MASAKATSU ,  ISHIKAWA KOUKICHI

IPC: H01P1/20 ,  H01P1/201 ,  H03H7/09 ,  H04N5/44

Abstract: PURPOSE:To improve the cut-off characteristics of a low frequency side and a high frequency side, by providing an adjacent video trap circuit between an input or output winding forming a VIF BPF for a TV receiver and a parallel resonator and an adjacent audio trap circuit at the pre-stage of the BPF. CONSTITUTION:A shield case 13 having a BPF for VIF is sectioned with a shield plate 13a, 14 and a coupling window 15, 1/4 wavelength resonators 16, 16' one end of which is opened and the other end of which is connected to the case 13, an input winding 17 and an output winding 18 inductively coupled to the resonators 16, 16' are arranged at the space at both ends. A parallel resonator consisting of coils 19, 19' and capacitors 20, 20' is provided at two spaces at the center side, and auxiliary windings 21, 21' inductively coupled with the coils 19, 19' are provided. A coil 22 is inserted between the connecting point of the windings 21, 21' and the winding 17 to form an adjacent video trap circuit. Further, the pre-stage of the BPF is provided with an adjacent audio trap circuit comprising capacitors C9-C11, a resistor R3 and a coil L5, allowing to improve the cut-off characteristics of a low frequency side and a high frequency side.

公开(公告)号：JPS586601A

公开(公告)日：1983-01-14

申请号：JP10857482

申请日：1982-06-25

Applicant: COMMUNICATIONS SATELLITE CORP

Inventor： RONARUDO II SUTEEJIENZU ,  GIYARII JII HABITSUSHIYAA

IPC: H01P1/203 ,  H01P1/201

公开(公告)号：JPS5759962B2

公开(公告)日：1982-12-17

申请号：JP3976076

申请日：1976-04-07

Applicant: TOYOTA MOTOR CO LTD

Inventor： KUROYANAGI YOSHITAKA ,  TERATANI TATSUO

IPC: H01P1/201 ,  F02P15/00 ,  H01Q1/00 ,  H04B1/12 ,  H04B3/32 ,  H04B15/02