X-Band dielectric resonator bandpass filter (original) (raw)
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A novel design combining standard microstrip technology with single ring resonator and high dielectric constant resonator for design of low and band pass filtering electromagnetic band gap(EBG) structures, operating in the range from 1 to 20 GHz is presented in this paper. The design is based on a high dielectric constant resonator embedded in a microstrip structure substrate. The dielectric resonator is fabricated by using commercial high dielectric constant EPOXY paste in a process compatible with serigraphy and screen printing technology.
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Designing of low loss Dielectric Resonator Filter
Emerging wireless, space and satellite communication links require light weight, low loss, temperature stable and inexpensivecommunication devices. Microwave filters are the key element of any communication system or microwave link. Microwave filters are usually implementedby using waveguide, coaxial, microstrip or lumped element resonators. Only dielectric resonator filters provide best combination of volume versus insertionloss of filter. Dielectric resonator filters offer very high Q factors to provide lowest pass band insertion loss and higher selectivity with compactness andminimal power requirements [1]. And satisfy vital demand of emerging space communication systems and cellular industry by offering very high-qualityfactor due to their inherent low loss material [2]. This paper describes basic steps to design dielectric resonator filter with the help of a 3D finite-elementmethod (FEM) simulation tool, Ansoft HFSS (High Frequency Structure Simulator). Dielectric disks are use...
X-BAND MINIATURIZED WIDEBAND BANDPASS FIL TER UTILIZING MULTILAYERED MICROSTRIP HAIR PIN RESONATOR
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This paper presents a new design of miniaturized wideband bandpass filter using microstrip hairpin in multilayer configuration for X-band application. The strong coupling required for wideband filter is realized by arranging five hairpin resonators in two layers on different dielectric substrates. Since adjacent resonator lines are placed at different levels, there are two possible ways to change coupling strength by varying the overlapping gap between two resonators; vertically and horizontally. In this paper, simulated and measured result for a wideband filter of 4.4 GHz bandwidth at 10.2 GHz center frequency with fifth order Chebyshev response is proposed. The filter is fabricated on 0.254 mm thickness R/T Duroid 6010 and R/T Duroid 5880 with dielectric constant 10.2 and 2.2 respectively using standard photolithography technique. Two filter configurations based on vertical (Type 1) and horizontal (Type 2) coupling variation to optimize the coupling strength are presented and compared. Both configurations produce very small and compact filter size, at 5.0 × 14.6 mm 2 and 3.2 × 16.1 mm 2 for the first and second proposed filter type respectively. The measured passband insertion losses for both filters are less than 2.3 dB and the passband return loss is better than −16 dB for filter Type 1 and −13 dB for filter Type 2. Very small and compact filter is achieved where measured results show good agreement with the simulated responses.
Compact Ultra-Wideband Bandpass Filter Using Additively Manufactured TM - Mode Dielectric Resonators
2022 52nd European Microwave Conference (EuMC)
This paper reports a compact ultra-wideband Cband dielectric filter using electrically-coupled TM 01δ resonators in longitudinal coupling topology. Uniquely, this configuration enables large inter-resonator couplings to be obtained, introducing broadband responses. All dielectric resonators are realized as a single highly integrated, additively-manufactured dielectric piece. The presented wideband dielectric filter is successfully designed, manufactured, assembled, and measured with excellent agreement between simulations and measurements. The implemented prototype operates at 6.1 GHz with a wide bandwidth of 2.70 GHz and a high unloaded quality factor of 1000. Also, the filter features a small mass of only 102 grams and a compact volume of 90×41×32 mm 3 .