Investigation of a Broadband Five-Stub 3 dB Coupler Using Microstrip Cells
Denis A. Letavin, Ilya A. Terebov
Abstract
Diagram-forming circuits contain passive microwave devices, such as phase shifters, directional couplers. Various requirements are imposed on such devices, for example, low cost, low weight and size, etc. The layout of a broadband 3 dB coupler functioning at a frequency of 1 GHz is studied. The coupler miniaturization was realized by exchanging the quarter-wave segments with microstrip cells having comparable characteristics with smaller dimensions. Such a replacement, allowed reducing the space of the coupler by more than 3 times, relative to the standard design.
Topics & Concepts
MiniaturizationHybrid couplerMicrostripStub (electronics)BroadbandRat-race couplerPower dividers and directional couplersMicrowaveMagic teeElectronic circuitElectrical engineeringElectronic engineeringMaterials scienceOptoelectronicsComputer scienceEngineeringTelecommunicationsMicrowave Engineering and WaveguidesAdvanced Antenna and Metasurface TechnologiesPhotonic and Optical Devices