Planar slot coupled microwave hybrid

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:868104

Petter, Jeffrey K ^[1]

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1. Williston, VT

A symmetrical 180.degree. microwave hybrid is constructed by opening a slot line in a ground plane below a conducting strip disposed on a dielectric substrate, creating a slot coupled conductor. Difference signals propagating on the slot coupled conductor are isolated on the slot line leaving sum signals to propagate on the microstrip. The difference signal is coupled from the slot line onto a second microstrip line for transmission to a desired location. The microstrip branches in a symmetrical fashion to provide the input/output ports of the 180.degree. hybrid. The symmetry of the device provides for balance and isolation between sum and difference signals, and provides an advantageous balance between the power handling capabilities and the bandwidth of the device.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• DOE Contract Number: AC02-76CH03000
• Assignee: Universities Research Association, Inc. (Washington, DC)
• Patent Number(s): US 5075647
• OSTI ID: 868104
• Country of Publication: United States
• Language: English

Related Subjects

planar
slot
coupled
microwave
hybrid
symmetrical
180
degree
constructed
line
ground
plane
below
conducting
strip
disposed
dielectric
substrate
creating
conductor
difference
signals
propagating
isolated
leaving
propagate
microstrip
signal
transmission
desired
location
branches
fashion
provide
input
output
ports
symmetry
device
provides
balance
isolation
advantageous
power
handling
capabilities
bandwidth
difference signal
desired location
output ports
device provides
ground plane
slot coupled
strip line
microwave hybrid
difference signals
dielectric substrate
coupled conductor
coupled microwave
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