Design of a 5.8 GHz rat-race coupler on the RO4003C� substrate

• Main Authors: Hock G.C., Chakrabarty C.K.
• Other Authors: 16021614500
• Format: Conference paper
• Published: 2023
• Subjects: Dielectric constant; Phase difference and power splitter; Rat-race coupler; Computer aided design; Microwaves; (+ mod 2N) operation; Circuit configurations; Circuit designs; circuit performances; Electronics design automation (EDA); International (CO); Microstrip (MSL); Output ports; Physical dimensions; power dividers; Power splits; Rat race couplers; Two types; Integrated circuit manufacture

This paper describes design of a rat-race coupler for operation at centering frequency of 5.8 GHz. The coupler is designed to have an equal power split outputs of 3 dB between output ports. Two types of power divider circuit configurations have been designed and analyzed. The coupler is designed using the Electronics Design Automation (EDA) tool that has tuning and optimization features. The circuit design iteration and the time required have been significantly reduced as the physical dimension of the circuit is tunable. The effects of the microwave artwork on circuit performance are observed. The rat-race coupler is implemented in the microstrip line and RO4003C� substrate is used. �2006 IEEE.