公开(公告)号：JPS5645206Y2

公开(公告)日：1981-10-22

申请号：JP6835976

申请日：1976-05-27

IPC: H01P7/00 ,  H01P1/20 ,  H01P1/201 ,  H01P5/00 ,  H01P5/08

公开(公告)号：JPS5690001U

公开(公告)日：1981-07-18

申请号：JP17095379

申请日：1979-12-12

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

公开(公告)号：JPS55135431A

公开(公告)日：1980-10-22

申请号：JP4323079

申请日：1979-04-09

Applicant: MATSUSHITA ELECTRIC IND CO LTD

Inventor： MAKIMOTO MITSUO ,  KIKUCHI ATOU ,  YAMASHITA SADAHIKO

IPC: H01P1/201 ,  H01P1/213 ,  H01P1/30 ,  H01P7/04 ,  H04B1/52

Abstract: PURPOSE:To secure the assured mechanical seal-up degree and the electric shielding and thus stabilize the characteristics as well as increase the mass productivity, by connecting plural units of independent resonators featuring the same measurement via the cable of 1/4 wavelength of the resonance frequency. CONSTITUTION:Coaxial resonators 8, 9 and 10, which are shielded electrically excepting the cable connection part and also sealed up mechanically, are connected with cables 2 and 3 featuring the length of 1/4 wavelength of the resonance frequency and via capacity elements 5, 6 and 7 each. The device thus constituted is provided at both the transmission and reception sides each to be connected to the antenna at the side of terminal 11 along with the side of terminal 12 connected to the transmission and reception terminals each.

公开(公告)号：JPS5515804U

公开(公告)日：1980-01-31

申请号：JP9683078

申请日：1978-07-15

IPC: H01P7/00 ,  H01P1/20 ,  H01P1/201 ,  H03H7/01 ,  H03H7/09

公开(公告)号：JPS555630U

公开(公告)日：1980-01-14

申请号：JP8798978

申请日：1978-06-28

IPC: H01P7/00 ,  H01P1/20 ,  H01P1/201 ,  H01P5/04

公开(公告)号：JPS54131449U

公开(公告)日：1979-09-12

申请号：JP1510878

申请日：1978-02-08

IPC: H03H7/01 ,  H01P1/20 ,  H01P1/201 ,  H03H7/02

公开(公告)号：JPS518045U

公开(公告)日：1976-01-21

申请号：JP7919774

申请日：1974-07-03

IPC: H01P7/00 ,  H01P1/20 ,  H01P1/201 ,  H04B1/18

公开(公告)号：JPS514243U

公开(公告)日：1976-01-13

申请号：JP7442574

申请日：1974-06-25

IPC: H01P1/203 ,  H01P1/20 ,  H01P1/201

公开(公告)号：JP4611811B2

公开(公告)日：2011-01-12

申请号：JP2005168582

申请日：2005-06-08

Applicant: トムソン ライセンシングThomson Licensing

Inventor： ギュガン シャルリーヌ ,  ル ナウール ジャン−イヴ ,  ロ イネ トン ドミニク ,  バロン フランソワ

IPC: H01P1/207 ,  H01P1/201 ,  H01P1/209 ,  H01P1/212

CPC classification number: H01P1/2016

公开(公告)号：JP2008060642A

公开(公告)日：2008-03-13

申请号：JP2006231725

申请日：2006-08-29

Applicant: Nippon Dengyo Kosaku Co Ltd ,  Nippon Hoso Kyokai ,  日本放送協会 ,  日本電業工作株式会社

Inventor： NOMOTO TOSHIHIRO ,  KUSHIRO YUICHIRO ,  HATANAKA HIROSHI

IPC: H01P1/207 ,  H01P1/201 ,  H01P1/205 ,  H03H7/075 ,  H03H7/09

Abstract: PROBLEM TO BE SOLVED: To provide a method for designing a band-pass filter in which transmission characteristics can be improved in a required signal band at a low cost while sustaining required out-band attenuation characteristics without increasing the overall dimensions, and to provide the band-pass filter. SOLUTION: In the band-pass filter 1 comprising a plurality of resonators 3, distribution of the no-load Q value of each resonator 3 is set depending on the relative electric field strength thereof. More specifically, in a six stage elliptic function filter, amplitude deviation in the band is minimized when the no-load Q value of a first resonator 3 1 and a sixth resonator 3 6 is set at 3,000, and the no-load Q value of a third resonator 3 3 and a fourth resonator 3 4 is set at 7,000. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于设计能够在不增加总体尺寸的同时维持所需的带外衰减特性的同时以低成本提高所需信号频带的传输特性的带通滤波器的方法，以及 以提供带通滤波器。 解决方案：在包括多个谐振器3的带通滤波器1中，根据其相对电场强度来设定每个谐振器3的空载Q值的分布。 更具体地说，在六级椭圆函数滤波器中，当第一谐振器3 <1>和第六谐振器3 6 的空载Q值 >设定为3,000，将第三谐振器3 <3>和第四谐振器3 4 的无负载Q值设定为7,000。 版权所有（C）2008，JPO＆INPIT