Work

Unequal Single-Ended-to-Balanced Power Divider with Enhanced Input-Matching Bandwidth

Year: 2024

Type: article

Abstract: To reduce the circuit size of a single-ended-tobalanced power divider, a section of coupled line with a short-circuited terminal is applied.In this structure, two transmission zeros are generated, which realizes a wide input-matching bandwidth without extra absorbing branches.The enhanced input matching bandwidth can decrease the effect of the reflection wave power on the operation of the preceding active stage in the RF front end.Equations are derived to support the power transmission in a specific power division ratio.To verify the proposed structure, a single-ended-to-balanced power divider operating at 2.0 GHz is designed, fabricated, and measured.A wide matching bandwidth under -10 dB covers from 0.292 to 3.966 GHz with a fractional bandwidth (FBW) of 183.7%.Simulation and measurement results are in good agreement.

Source: Radioengineering

DOI: 10.13164/re.2024.0612

Authors: Z. Zhu, Z. Chen

Language: English

Topic: Microwave Engineering and Waveguides

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $431

Funder: Quzhou University

Award: G7296134754