Design and simulation of Six-band triplexer filter for WLAN systems

Abstract EN

This paper presents microstrip triplexer with 6 bands frequency responses.

The design of triplexer uses 6 cross coupled resonators based on step impedance resonator.

Each one of these resonators has short or open-ended section that initiates dual-band response with a large rejection band.

The presented device has 3 two-pole dual band filter channels that are joint with regular T-shaped feeders.

This triplexer has miniature area in term of ?? is about 0.4?? × 0.3?? and interesting insertion loss, isolation band responses at (1.8 and 2.3 GHz), (3.45 and 4.1 GHz), and (5.2 and 5.75 GHz) band frequencies.

From the simulated result, it is found that the isolation value is around 45 dB.

All results are simulated using Advanced Design System (ADS) and IE3D simulators