JPS5545255A - Microwave delay time equalizing system - Google Patents

Microwave delay time equalizing system

Info

Publication number
JPS5545255A
JPS5545255A JP11857378A JP11857378A JPS5545255A JP S5545255 A JPS5545255 A JP S5545255A JP 11857378 A JP11857378 A JP 11857378A JP 11857378 A JP11857378 A JP 11857378A JP S5545255 A JPS5545255 A JP S5545255A
Authority
JP
Japan
Prior art keywords
delay time
transmission system
frequency
branching
filters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11857378A
Other languages
Japanese (ja)
Inventor
Harunari Futaki
Hideo Ishii
Toa Kobayashi
Yoshitaka Yasuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SPC Electronics Corp
Nippon Telegraph and Telephone Corp
Shimada Rika Kogyo KK
Original Assignee
SPC Electronics Corp
Nippon Telegraph and Telephone Corp
Shimada Rika Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SPC Electronics Corp, Nippon Telegraph and Telephone Corp, Shimada Rika Kogyo KK filed Critical SPC Electronics Corp
Priority to JP11857378A priority Critical patent/JPS5545255A/en
Publication of JPS5545255A publication Critical patent/JPS5545255A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To make it possible to facilitate equalization of the microwave band delay time by reducing the inclination of a delay time characteristic in the branching filter system and improving a symmetrical property by making the arrangement order of branching filters opposite in the transmission system and the receiving system. CONSTITUTION:Branching filters 1-4 in transmission system T are arranged with a frequency relation similar to the conventional relation, however, arrangement of branching filters 1'-4' in receiving system R distant from and opposite to transmission system T is opposite to the conventional arrangement, and they are so arragned in receiving system R (oppositely to transmission system T) that the frequency of branching filter 4' nearest to antenna A' may be highest and the frequency of branch filters in positions farther from antenna A' may be lower. The overall delay time of branch input ends B1-B4 of transmission system T and branch output ends B'1-B'4 of receiving system R at a point distant from the center frequency of respective pass bands by DELTAf1 + or -2.0MHz in this constitution is as shown in table 50, so that the inclination of a delay time characteristic is reduced, and a symmetrical property becomes good.
JP11857378A 1978-09-28 1978-09-28 Microwave delay time equalizing system Pending JPS5545255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11857378A JPS5545255A (en) 1978-09-28 1978-09-28 Microwave delay time equalizing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11857378A JPS5545255A (en) 1978-09-28 1978-09-28 Microwave delay time equalizing system

Publications (1)

Publication Number Publication Date
JPS5545255A true JPS5545255A (en) 1980-03-29

Family

ID=14739933

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11857378A Pending JPS5545255A (en) 1978-09-28 1978-09-28 Microwave delay time equalizing system

Country Status (1)

Country Link
JP (1) JPS5545255A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533011A (en) * 1976-06-28 1978-01-12 Siemens Ag Directional radio communication system having uniform delay and attenuating characteristics for all channels

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533011A (en) * 1976-06-28 1978-01-12 Siemens Ag Directional radio communication system having uniform delay and attenuating characteristics for all channels

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