MICROWAVE CIRCUIT BOARD

PURPOSE:To reduce the area size of a microwave circuit board by forming a groove to a dielectric board between transmission lines so as to reduce the static capacitance between the transmission lines, thereby reducing the coupling between the transmission lines. CONSTITUTION:The creepage distance of...

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Bibliographische Detailangaben
1. Verfasser:	TAWARA KAZUHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE WAVEGUIDES
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce the area size of a microwave circuit board by forming a groove to a dielectric board between transmission lines so as to reduce the static capacitance between the transmission lines, thereby reducing the coupling between the transmission lines. CONSTITUTION:The creepage distance of a dielectric board 1 between transmission lines 2, 3 is prolonged by a slot 4, the static capacitance between the lines is reduced and the coupling between both the transmission lines 2, 3 is weakened. Thus, the coupling between both the transmission lines 2, 3 is decreased without increasing the interval between both the transmission lines 2, 3 and the area size of the microwave circuit board is reduced. Moreover, the effect of reducing the coupling between both the transmission lines 2, 3 is increased more when the dielectric constant of the board 1 is high. Furthermore, the coupling between the transmission lines is reduced more by changing the depth of the slot and the shape of the bottom face.