Abstract
A tunable bandpass microstrip filter based on varactor loaded Split Ring Resonators (SRRs) is presented. The filter is designed such a way that it has one transmission zero at the right hand side of the passband. Silicon tuning diode, of which capacitance is controlled by DC bias voltage, is used as the varactor element and it is placed between two concentric split rings of SRR to tune SRR’s resonance frequency. Single module of the tuning filter is designed and simulated using Momentum 2006C software. The size of the SRR is chosen to have passband located at 2.8 GHz. And, it is fabricated on Rogers RO4003 high frequency laminate.
Presentation Slides
Tunable Microstrip Bandpass Filters Based on Planar Split Ring Resonators
A tunable bandpass microstrip filter based on varactor loaded Split Ring Resonators (SRRs) is presented. The filter is designed such a way that it has one transmission zero at the right hand side of the passband. Silicon tuning diode, of which capacitance is controlled by DC bias voltage, is used as the varactor element and it is placed between two concentric split rings of SRR to tune SRR’s resonance frequency. Single module of the tuning filter is designed and simulated using Momentum 2006C software. The size of the SRR is chosen to have passband located at 2.8 GHz. And, it is fabricated on Rogers RO4003 high frequency laminate.
