Waveguide-to-microstrip transition for mmwave and MMIC applicati

Details Waveguide-to-microstrip transition for mmwave and MMIC applicati Waveguide-to-microstrip transition for mmwave and MMIC applicati

1997-07-01

1999-06-15

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

333 33, H01P 5107

Patent

active

059125985

ABSTRACT:
A waveguide-to-microstrip transition package (30) for processing electromagnetic wave signals includes a waveguide (32) for directing the signals to the input of the waveguide (32). A substrate (34) overlaps the input of the waveguide (32) to form a hermetic seal. A metallized probe (36) conducts the signals to a microstrip line (40) and is patterned upon the substrate (34). The transition (30) also includes an iris (48) formed from a metallized pattern on the opposite side of the substrate (34) from the probe (36). The special design of the probe (36), the structure of the iris (48) and the wave guide cavity (46) above the probe (36) allow impedance matching and efficient signal transfer from waveguide (32) to microstrip line (40) or from microstrip line (40) to waveguide (32).

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