JPS6432501A - Microwave circuit device - Google Patents

Microwave circuit device

Info

Publication number
JPS6432501A
JPS6432501A JP18655987A JP18655987A JPS6432501A JP S6432501 A JPS6432501 A JP S6432501A JP 18655987 A JP18655987 A JP 18655987A JP 18655987 A JP18655987 A JP 18655987A JP S6432501 A JPS6432501 A JP S6432501A
Authority
JP
Japan
Prior art keywords
board
circuit
mismatching
impedance
dielectric
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
JP18655987A
Other languages
Japanese (ja)
Inventor
Masataka Ito
Taro Shibagaki
Fumihiko Shimizu
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP18655987A priority Critical patent/JPS6432501A/en
Publication of JPS6432501A publication Critical patent/JPS6432501A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0237—High frequency adaptations
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components

Abstract

PURPOSE:To prevent the deterioration in the circuit characteristic due to the case such as mismatching of impedance or increase in pad capacitance by decreasing the dielectric constant of a dielectric board using an FET and increasing the part of the board using an IC. CONSTITUTION:The circuit characteristic is deteriorated in the circuit where microwave circuit components such as FETs and ICs exist in mixture because of the case such as mismatching of impedance or increase in pad capacitance. The pad capacitance is decreased by making the thickness of the dielectric material of the board with the FET mounted thereupon thick or employing a material with a lower dielectric constant, and the impedance mismatching is prevented by employing a material with a high dielectric constant (hatched part 2 of a board 1) or making the thickness (part 12 of a board 13) thin. Moreover, a dielectric substance having a ground plate on its upper face is coated around the parts of ground board with an IC mounted thereupon as the other way. Thus, a stable microwave circuit without the deterioration in the characteristic is obtained.
JP18655987A 1987-07-28 1987-07-28 Microwave circuit device Pending JPS6432501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18655987A JPS6432501A (en) 1987-07-28 1987-07-28 Microwave circuit device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18655987A JPS6432501A (en) 1987-07-28 1987-07-28 Microwave circuit device

Publications (1)

Publication Number Publication Date
JPS6432501A true JPS6432501A (en) 1989-02-02

Family

ID=16190645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18655987A Pending JPS6432501A (en) 1987-07-28 1987-07-28 Microwave circuit device

Country Status (1)

Country Link
JP (1) JPS6432501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002334947A (en) * 2001-05-10 2002-11-22 Sony Corp High-frequency module substrate device and method of manufacturing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002334947A (en) * 2001-05-10 2002-11-22 Sony Corp High-frequency module substrate device and method of manufacturing the same

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