Directional coupler

Details Directional coupler Directional coupler

2006-03-21

2006-03-21

Takaoka, Dean (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S116000

Reexamination Certificate

active

07015771

ABSTRACT:
A directional coupler uses non-metallic slotted spacers at the edges of a pair of coupled lines. The spacers are adjustable in their vertical position and thereby provide continuous coupling fine-adjustment. The spatial relationship between the coupled lines is therefore adjustable and does not depend upon extremely tight manufacturing tolerances.

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Matthaei et al, “Microwave Filters, Impedance-Matching Networks, and Coupling Structures”, McGraw Hill, Chapter 13 “TEM-Mode, coupled-Transmission-Line Directional Couplers and Branch-Line Directional Couplers.”.
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