Tunable Stripline Filter

The proposed filter consists of two cascaded hairpin step impedance resonators SIRs in a suspended stripline SSL. As an example of the proposed design method, a low-loss NBPF with a 5 bandwidth with wideband harmonic passband suppression up to 13.5 f 0 has been demonstrated.

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filter consists of four edge-coupled strip lines. The performance is compared with other fixed band stripline filters amp other tunable filters. The filter is operated at upper L-band frequency segment of 1.3 GHz to 1.5 GHz for satellite application. The proposed circuit is simulated using MATLAB software amp Roger substrate with dielectric

The filter provides sharp band edges with exceptional selectivity. The closest alternative found is a waveguide filter shown in dashed blue line in Figure 10. It is important to remark that the center frequency and passband have been normalized for comparison. Actual data of the alternative filter can be gathered from the following table.

Multi-octave contiguous channel multiplexers are a key component in EW systems, since they provide the front-end signal sorting. The paper describes advances in the development of broadband, low-loss, selective, lowpass, highpass and bandpass filters and contiguous channel multiplexers from 500 MHz to 26.5 GHz, in the form of suspended substrate stripline SSS realisations in particular to

A suspended substrate tunable filter is presented. Meandered input and inter-resonator coupling structures are introduced to reduce bandwidth variation across the tuning range. Simulated and experimental results are presented to verify the validity of the proposed concept. A two-pole filter is fabricated and tested. The presented filters exhibit a bandwidth variation of less than 7.8 for a

In this paper, a tunable suspended substrate stripline SSL bandpass filter BPF with constant absolute bandwidth ABW is presented. The filter consists of two symmetric SSL quarter-wavelength resonators with one end short-circuited and another one loaded with series varactor diodes to tune the resonant frequency. Using Hybrid electromagnetic coupling to adjust the coupling coefficient to

Suspended substrate stripline filter technology offers many advantages for designers looking for wide passbands, deep rejection and sharp roll-off in the transition. By utilizing air cavities instead of dielectric materials used in traditional stripline fabrications, these filters achieve better Q and better thermal stability, making them suitable for many high-performance applications in a

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This Letter presents a varactor-loaded double-layer coupled stripline resonator to implement compact fourth-order tunable bandpass filter. The whole structure of the proposed resonator consists of two strongly coupled striplines, a metal post and a varactor with bias circuit.

In this paper, a varactor-based tunable combline suspended integrated stripline SISL bandpass filter with a tuning range of 2.3 GHz to 3.9 GHz is designed and built.

The stripline based filter amp cavity based filter are able to provide the high Q band pass filter . At microwave frequency the series, this filter may be used as a tunable filter . In this paper a 3 stage stripline band-pass filter design using MATLAB is illustrated using two different dielectric materials i.e. Plastic amp Ceramic. The