JPS57155801A - Band pass filter - Google Patents

Band pass filter

Info

Publication number
JPS57155801A
JPS57155801A JP4193981A JP4193981A JPS57155801A JP S57155801 A JPS57155801 A JP S57155801A JP 4193981 A JP4193981 A JP 4193981A JP 4193981 A JP4193981 A JP 4193981A JP S57155801 A JPS57155801 A JP S57155801A
Authority
JP
Japan
Prior art keywords
metal
rectangular waveguide
band
input
filter
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.)
Granted
Application number
JP4193981A
Other languages
Japanese (ja)
Other versions
JPS6233764B2 (en
Inventor
Masato Sakai
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4193981A priority Critical patent/JPS57155801A/en
Publication of JPS57155801A publication Critical patent/JPS57155801A/en
Publication of JPS6233764B2 publication Critical patent/JPS6233764B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure

Abstract

PURPOSE:To decrease the temperature rise and the change in the characteristics, by overlapping a metal with better thermal conductivity than that of the construction body of an inner wall surface of a resonator on an external wall surface of the resonator to which a rectangular waveguide is coupled. CONSTITUTION:A coupling surface of a filter main body 10 with input and output waveguids 8 and 9 is shaped over a suitabl thickness, and a metal 11 with better thermal conductivity than that of the main body 10 is overlapped on this surface, to form coupling holes 5 and 6. As this metal, plated copper or copper alloy is used. A large microwave power applied to an input rectangular waveguide 8 is given to an output rectangular waveguide 9 through the filter if the frequency is within the band of the band pass filter and reflected if outside of the band. In this case, a large current flows near the coupling hole 5 for heating. On the other hand, since most part of the large current flows to the metal 11 with better conductivity near the input side, the heat goes externally and the temperature of the cavity part of the resonators 1 and 2 can not be risen.
JP4193981A 1981-03-23 1981-03-23 Band pass filter Granted JPS57155801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4193981A JPS57155801A (en) 1981-03-23 1981-03-23 Band pass filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4193981A JPS57155801A (en) 1981-03-23 1981-03-23 Band pass filter

Publications (2)

Publication Number Publication Date
JPS57155801A true JPS57155801A (en) 1982-09-27
JPS6233764B2 JPS6233764B2 (en) 1987-07-22

Family

ID=12622179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4193981A Granted JPS57155801A (en) 1981-03-23 1981-03-23 Band pass filter

Country Status (1)

Country Link
JP (1) JPS57155801A (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE MICROWAVE THEORY AND TECHNIQUE SYMPOSIUM DIGEST=1979 *

Also Published As

Publication number Publication date
JPS6233764B2 (en) 1987-07-22

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