Compact $S$ -Band Coaxial Cavity Resonator Filter Fabricated By 3-D Printing

Salek, Milan; Shang, Xiaobang; Lancaster, M.J.

doi:10.1109/lmwc.2019.2913155

Cited by 21 publications

(10 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 7 shows the frequency response of the filter over a wide frequency range. Generally, coaxial filters have good spurious free performance compared to other type of filters 14 . However, the coaxial filter presented here has a slightly degraded spurious free performance.…”

Section: Measurement and Discussionmentioning

confidence: 78%

“…This article is part of a comprehensive study on 3-D printed microwave circuits, where we are using the fact that complex shapes can be made easily. This has enabled a number of new novel ideas (including the one here), 14,15 as well as investigation into the frequency limits of 3-D printing. 16,17 The design procedure of the filter is explained in Section 2, and fabrication details are provided in Section 3.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Two‐GHzhybrid coaxial bandpass filter fabricated by stereolithography3‐Dprinting

Salek

Wang

Lancaster

2020

Int J RF Microw Comput Aided Eng

Self Cite

View full text Add to dashboard Cite

This brief presents a fourth‐order hybrid coaxial bandpass filter, which is fabricated using Stereolithography 3‐D printing. The filter is designed to operate at a center frequency of 2 GHz, with a bandwidth of 40 MHz, a Chebyshev response and two symmetrical transmission zeros at 1.96 GHz and 2.04 GHz to achieve a better frequency selectivity. Usually in coaxial cavity filter design, the main‐line couplings and cross couplings are realized using coupling irises or probes. However, in the filter presented here, the main‐line couplings between coaxial resonators and input/output coupling are realized using Printed Circuit Board (PCB) lines instead. This novel idea allows different topologies to be designed easily by altering the PCB layout. It also allows multiple cross couplings to be included in the PCB layout for different filter topologies. In addition, the quality factor of each of the coaxial resonators in the filter is increased by introducing base rounding in the resonator. The filter was tested, and the measurement result of the filter shows very good agreement with simulated result without tuning, which indicates the accuracy of the fabrication process.

show abstract

Section: Measurement and Discussionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Two‐GHzhybrid coaxial bandpass filter fabricated by stereolithography3‐Dprinting

Salek

Wang

Lancaster

2020

Int J RF Microw Comput Aided Eng

Self Cite

View full text Add to dashboard Cite

show abstract

“…Using the coupling matrix methodology [20], the external quality factor Qe and coupling coefficients Mij of the above design specifications are calculated as Qe = 80.9001, K12 = K23 = 0.0109. The relations between the physical dimensions of the coupling irises and Qe as well as K12 (= K23) can be extracted by EM simulation [21,22,23,24,25,26,27], and are plotted in Fig. 3(a) and Fig.…”

Section: Design Of Filtermentioning

confidence: 99%

An X-band waveguide bandpass filter with enhanced stopband using offset resonators

Líu

Zhang

Guo

et al. 2021

IEICE Electron. Express

View full text Add to dashboard Cite

“…Coaxial resonators have been widely researched to obtain low-loss filters [14] and Chebyshev low-pass filters [15] in wireless communication systems. A compact coaxial cavity resonator filter has been studied to operate at a frequency of 3 GHz [16].…”

Section: Introductionmentioning

confidence: 99%

Small-Size Coaxial Resonant Applicator for Microwave Heating Assisted Additive Manufacturing

Link

Engler

et al. 2021

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

This paper introduces the design and analysis of a small-size coaxial resonant applicator for high-speed microwave heating assisted additive manufacturing of multiple materials, such as continuous carbon fiber reinforced polymer composites, thermoplastic and metal parts. The elaborated coaxial resonant applicator reduced the size and has a resonant frequency between 2.4 to 2.5 GHz. A TEM wave is stimulated in the applicator where the electrical field is polarized perpendicular to the filaments and therefore allows a maximum penetration depth. The electrical conductive filament is designed as part of the inner conductor to enhance coupling efficiency. To prevent microwave leakage induced by the conductive material, a compact quarter wavelength filter was developed. The equivalent circuit of the filter was used to analyze the influence of structural parameters on the resonance frequency. The filter has been tested and good agreement between measured and simulated results is obtained. The heating behaviour with varying input power has been investigated for polyamide, polylactic acid and continuous carbon fiber reinforced polyamide filaments.

show abstract

Compact $S$ -Band Coaxial Cavity Resonator Filter Fabricated By 3-D Printing

Cited by 21 publications

References 12 publications

Two‐GHzhybrid coaxial bandpass filter fabricated by stereolithography3‐Dprinting

Two‐GHzhybrid coaxial bandpass filter fabricated by stereolithography3‐Dprinting

An X-band waveguide bandpass filter with enhanced stopband using offset resonators

Small-Size Coaxial Resonant Applicator for Microwave Heating Assisted Additive Manufacturing

Contact Info

Product

Resources

About