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Title: Planar slot coupled microwave hybrid

Abstract

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.

Inventors:
 [1]
  1. Williston, VT
Issue Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
OSTI Identifier:
868104
Patent Number(s):
5075647
Assignee:
Universities Research Association, Inc. (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01P - WAVEGUIDES
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; /333/

Citation Formats

Petter, Jeffrey K. Planar slot coupled microwave hybrid. United States: N. p., 1991. Web.
Petter, Jeffrey K. Planar slot coupled microwave hybrid. United States.
Petter, Jeffrey K. Tue . "Planar slot coupled microwave hybrid". United States. https://www.osti.gov/servlets/purl/868104.
@article{osti_868104,
title = {Planar slot coupled microwave hybrid},
author = {Petter, Jeffrey K},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}