Wideband coupled resonator based ultra-wideband 3dB power divider
In this paper, a 3dB ultra-wideband (UWB) power divider has been designed using three wide-band coupled resonators. The resonator unit which consists of symmetric interdigital coupled input/output lines, resonates in two basic for broadening the operating bandwidth. Output ports maintains equal distance from the input in order to achieve in-phase power divisions. The prototype structure provides an equal magnitude, in-phase power division and adequate isolation at outputs from 3.82 to 10.2 GHz, which almost complies the FCC defined UWB frequency range. It has advantages like single layer, via free and compact in size.
Design and Analysis of a Wideband Microstrip 3 dB Power Divider
In this study, the design and analysis of a -3 dB wideband microstrip power divider is investigated. Power divider is used for devices with tight coupling and provide half the input power at each of its output ports. It consists of three ports for power combining and all the changes are obtained within 0 - 3.5 GHz frequency range. Simulation is done using Sonnet Suites, a 3D Planar electromagnetic simulation software using a computational analysis based on Method of Moments (MoM). Theoretical and parametric studies describing the performance of the divider are presented and discussed. Findings from this simulation and analysis will be further used for fabrication stage.
Ultra-Wideband Power Divider With Good In-Band Splitting and Isolation Performances
An ultra-wideband (UWB) power divider on microstrip line is proposed, analyzed and designed. This divider is formed by installing a pair of stepped-impedance open-circuited stubs and parallel-coupled lines to two symmetrical output ports. In addition, a single resistor is properly placed between two output ports. After simple transmission line theory analysis, it is demonstrated that 3 dB power splitting from one input to two output ports, good impedance matching at all the three ports and excellent isolation between two output ports are achieved over the specified 3.1-10.6 GHz UWB range. Finally, a prototype divider is fabricated and measured to provide an experimental verification on the predicted attractive features.