Abstract
This article presents a novel crossover with an embedded bandpass filter function. The crossover is derived from the traditional crossover based on a tandem connection of two 3-dB 90° couplers by substituting them with 180° filtering couplers and introducing a filter function. In addition, a 180° phase shift realized by coupled resonators is added to keep the two cross paths in phase. The equivalent circuit of the crossover between the two diagonal ports has been treated as bandpass filters with coupled resonators. The design equations are derived to assist with the synthesis process for the filtering crossover. For verification, a filtering crossover with fifth-order filter characteristics, operating at 2.4 GHz, is designed, fabricated, and tested. The measured results match very well with the simulation, which verifies the proposed circuit concept.
Original language | English |
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Pages (from-to) | 309-314 |
Number of pages | 6 |
Journal | IEEE Transactions on Components, Packaging and Manufacturing Technology |
Volume | 14 |
Issue number | 2 |
Early online date | 26 Dec 2023 |
DOIs | |
Publication status | Published - Feb 2024 |
Bibliographical note
Funding Agency:10.13039/501100021171-Basic and Applied Basic Research Foundation of Guangdong Province (Grant Number: 2021A1515110432 and 2021A1515110629)
Open Funding of Guangdong Provincial Key Laboratory of Short-Range Wireless Detection and Communication
10.13039/501100012245-Science and Technology Planning Project of Guangdong Province (Grant Number: 2022A0505050010)
Keywords
- Bandpass filter
- crossover
- filtering coupler
- stripline
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering