Dielectric-loaded Ku-Band Filter for High-power Space Applications based on Barrel-shaped cavities

Vallerotonda, Paolo; Cacciamani, Fabrizio; Pelliccia, Luca; Aquino, Francesco; Tomassoni, Cristiano; Martín-Iglesias, Petronilo; Crestvolant, Vittorio Tornielli di

doi:10.23919/eumc50147.2022.9784232

Cited by 5 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Next, the printed parts need to be cleaned using airbrushes and a solvent, as they are covered in uncured slurry resulting from the printing, which needs to be removed (4). Once complete, the parts need to undergo a debinding step to remove the organic binder (5), followed by a sintering step (6) to form dense ceramic parts.…”

Section: D-printing Methodology and Considerationsmentioning

confidence: 99%

3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters

et al. 2022

View full text Add to dashboard Cite

This paper demonstrates the use of a ceramic-based stereolithography additive manufacturing process in the fabrication of higher-order mode dielectric resonators. In this work, dielectric resonators with concentric disks around a combline rod structure are 3D-printed using alumina. The integration of the concentric disks for use of the TE 112 mode allows for a more compact cavity structure and a higher unloaded quality factor when compared to a simple dielectric combline resonator with a similar S-parameter response. The achievable improvements in quality factor for the TE 112 -mode resonators utilising concentric disks are compared through simulations and experimental results. The measured results demonstrate an increased average in the unloaded quality factor of Q u ≈ 2172 which is approximately 44%. Additionally, the application of the 3D-printed resonators is further demonstrated in a TE 112 singlet, doublet, and dualmode filter configuration.

show abstract

Section: D-printing Methodology and Considerationsmentioning

confidence: 99%

3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Different topologies correspond to completely different numbers and structures of transmission zeros, and therefore the performance of the designed filters varies greatly. According to the theoretical literature related to the design of transmission zeros for generalized Chebyshev filters [16][17][18][19][20], two couplings with different polarities are introduced: cross-electric coupling and cross-magnetic coupling. By introducing cross-coupling, two transmission zeros outside the upper and lower passband, respectively, can be obtained, , which helps to improve the out-of-band rejection.…”

Section: Design Principle Of Cavity Filtermentioning

confidence: 99%

Design of a New Capacitive Load Cross-Coupled Cavity Filter

Wang

et al. 2022

Electronics

View full text Add to dashboard Cite

This paper presents a new design method for a capacitor-loaded cross-coupled cavity filter, which significantly increases the power capacity of the cavity filter while improving out-of-band rejection. The filter uses a coaxial resonator at the open end of the donut capacitive-load. A triangular form of cavity structure is used for the full-cavity arrangement to reduce the size of the filter. In order to validate the design, a filter with a center frequency of 2.08 GHz and bandwidth of 80 MHz was designed, processed, and tested. The measured insertion loss was ≤0.97 dB, and the return loss was >20 dB in the range of 2040 MHz to 2120 MHz; the rejection was as high as 80 dB, and in-band ripple was 0.06 dB in the upper and lower stopband-range, which was only 30 MHz away from the sideband. After a simulation of the model using HFSS software (HFSS 2021, Canonsburg, PA, USA), the measured results matched the simulation results, which verified the correctness and practicality of the design. Compared with the ordinary-disc-load resonant cavity, the new donut capacitively loaded cavity-bandpass-filter has a 13.2% reduction in height and a 29.7% increase in power capacity.

show abstract

Ku-Band SIW Filter with High Fractional Bandwidth Optimized Using Feed Forward Back Propagation ANN

Soundarya

Gunavathi

2023

IETE Journal of Research

View full text Add to dashboard Cite

Dielectric-loaded Ku-Band Filter for High-power Space Applications based on Barrel-shaped cavities

Cited by 5 publications

References 13 publications

3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters

3D-Printed Dielectric Resonators for Quasi-TE112 Mode Singlets, Doublets and Dual-Mode Filters

Design of a New Capacitive Load Cross-Coupled Cavity Filter

Ku-Band SIW Filter with High Fractional Bandwidth Optimized Using Feed Forward Back Propagation ANN

Contact Info

Product

Resources

About