Abstract
A balanced diplexer and a balun diplexer, both with high isolation, are proposed in this article. First, a balanced bandpass filter (BPF) operating in GSM (with a center frequency of 1.92 GHz) and the other in WLAN (with a center frequency of 2.45 GHz) were designed using ordinary uniform-impedance resonators (UIRs) and center-grounded UIRs. Next, the two balanced BPFs were combined through two T-junctions to form a six-port balanced diplexer. Finally, a five-port balun diplexer was obtained by removing from the balanced diplexer one of the two T-junctions along with the microstrip feeding lines connected to it and by carefully adjusting the structural dimensions of the other T-junction. A satisfactory agreement is validated between simulated and measured results.
Original language | English |
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Pages (from-to) | 555-559 |
Number of pages | 5 |
Journal | Microwave and Optical Technology Letters |
Volume | 56 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2014 Mar 1 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering