Balanced-single-ended inverting power divider

Abstract

The invention provides a balance type single-end anti-phase power divider. The balance type single-end anti-phase power divider comprises a medium substrate, and two mutually coupled first microstrip lines, two mutually coupled second microstrip lines, two mutually coupled third microstrip lines, a first input port, a second input port, a first output port, a second output port and a grounding resistor which are arranged on the medium substrate, wherein the other rends of the two third microstrip lines are mutually in electrical connection and form a third connection joint, one end of the grounding resistor is connected with the third connection joint, and the other end of the grounding resistor is grounded; and the first microstrip lines, the second microstrip lines and the third microstrip lines each has an electric length of pi / 2. According to the invention, power distribution of differential signals and a function of phase reversal of an output end are realized, at the same time, the work bandwidth of the power divider, including coupling bandwidth, isolation bandwidth and common-mode bandwidth is improved, and the dimension is reduced.

Description

technical field [0001] The invention relates to the technical field of microwave and millimeter wave circuits and antenna feed networks, in particular to a balanced-single-end inverting power divider. Background technique [0002] As an important electronic device, the power splitter can be used in various functional microwave components, feed networks and complete machines. It can distribute the power of the microwave signal according to certain requirements. At present, power splitters are mostly single-ended and fully balanced. Single-ended power splitters can only be used for single-ended network connections, and have no suppression of common-mode noise; fully balanced power splitters have a good common-mode suppression effect, but they can only be connected with balanced devices and have a large size . In order to improve the flexibility of connecting power splitters to other devices while maintaining high rejection of common-mode noise, the design and development of...

AI Technical Summary

Problems solved by technology

Full single-ended power divider, no common mode rejection capability and inconvenient to connect with other differential devices

The fully balanced power divider has common mode rejection capability and is convenient to connect with other differential devices, but the overall size is large, and it is inconvenient to connect with other single-ended and differential devices at the same time

At present, there are few inverting power splitters from balanced to single-ended, with large size and narrow bandwidth, and its relative working bandwidth is 7.7%.

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