scholarly journals Ka-Band LTCC Stacked Substrate Integrated Waveguide Bandpass Filter

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Peng Zheng ◽  
Zhifu Liu ◽  
Mingsheng Ma ◽  
Yi Wang ◽  
Feng Liu ◽  
...  
Keyword(s):  
Bandpass Filter ◽  
Coplanar Waveguide ◽  
Three Dimensional ◽  
Substrate Integrated Waveguide ◽  
Third Order ◽  
Ka Band ◽  
Vertical Coupling ◽  
Vertical Transition ◽  
Compact Size ◽  
Narrow Slot

A Ka-band substrate integrated waveguide bandpass filter has been designed and fabricated using low temperature co-fired ceramic (LTCC) technology. The in-house developed SICCAS-K5F3 material with a permittivity of 6.2 and a loss tangent of 0.002 was used. The size and surface area of the proposed bandpass filter are reduced by exploiting vertical coupling in vertically laminated three-dimensional structures. The coupling between adjacent cavities is realized by a narrow slot. A vertical transition structure between the coplanar-waveguide feed line and the substrate integrated waveguide is adopted to facilitate the internal signal connection. The demonstrated third-order filter has a compact size of 6.79 mm×4.13 mm×1.34 mm (0.63λ0  × 0.38λ0  × 0.12λ0) and exhibits good performance with a low insertion loss of 1.74 dB at 27.73 GHz and a 3 dB fractional bandwidth of 10 %.

Compact bandpass filter with wide-stopband using substrate integrated waveguide cavities and short-circuited coplanar line

2019 ◽  
Vol 12 (5) ◽  
pp. 345-351
Author(s):  
Amit Ranjan Azad ◽  
Akhilesh Mohan
Keyword(s):  
Resonant Frequency ◽  
Bandpass Filter ◽  
Structural Parameters ◽  
Center Frequency ◽  
Substrate Integrated Waveguide ◽  
Third Order ◽  
Coplanar Line ◽  
Compact Size ◽  
Measurement Results ◽  
Waveguide Cavities

AbstractThis article presented a compact bandpass filter with wide-stopband performance. Two substrate integrated waveguide (SIW) cavities and a short-circuited coplanar line introduced between the two cavities are used to realize a compact third-order bandpass filter. The passband is generated by combining the resonant frequency of TE101 mode of the SIW cavities and the fundamental resonant frequency of the short-circuited coplanar line. The size of the proposed filter reduces significantly in comparison with conventional third-order SIW filters. Moreover, the center frequency (CF) and the bandwidth of the filter can be controlled by adjusting the structural parameters of the filter. In addition, the first higher-order mode TE102 of the SIW cavity is suppressed by minimizing the coupling of TE102 mode in order to obtain wide-stopband performance. The proposed filter is designed, fabricated, and measured, and the simulation and measurement results show a good agreement. The filter exhibits compact size, low loss, and a rejection higher than 20 dB up to 1.94f0.

Ka Band Novel Concise Sine Substrate Integrated Waveguide Bandpass Filter

2012 ◽  
Vol 26 (1) ◽  
pp. 140-147 ◽  
Author(s):  
X. Yang ◽  
Y. Fan ◽  
B. Zhang ◽  
X. Xu ◽  
H. Wang
Keyword(s):  
Bandpass Filter ◽  
Substrate Integrated Waveguide ◽  
Ka Band

scholarly journals A Bandpass Filter Based on Half Mode Substrate Integrated Waveguide-to-Defected Ground Structure Cells

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Yong Mao Huang ◽  
Zhenhai Shao ◽  
Zhaosheng He ◽  
Chang Jiang You ◽  
Di Jiang
Keyword(s):  
Insertion Loss ◽  
Bandpass Filter ◽  
Second Harmonic ◽  
Substrate Integrated Waveguide ◽  
Harmonic Suppression ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
X Band ◽  
Compact Size ◽  
Low Insertion Loss

A half mode substrate integrated waveguide-to-defected ground structure (HMSIW-DGS) cell and its embedded form are proposed to miniaturize a bandpass filter. Both cells can purchase wideband frequency response and low insertion loss, as well as simple and easy fabrication. By cascading two of them according to design requirement, an X-band bandpass filter is designed and measured to meet compact size, low insertion loss, good return loss, second harmonic suppression, and linear phase.

Substrate Integrated Waveguide Based Bandpass Filter with Defected Ground Structure for FMCW Radar Application

2020 ◽  
Vol 10 (3) ◽  
pp. 421-429
Author(s):  
Keyur Mahant ◽  
Hiren Mewada
Keyword(s):  
Bandpass Filter ◽  
Frequency Tuning ◽  
Dielectric Material ◽  
Three Dimensional ◽  
Fem Analysis ◽  
Dissipation Factor ◽  
Center Frequency ◽  
Substrate Integrated Waveguide ◽  
Defected Ground Structure ◽  
Ground Structure

Aims : Substrate Integrated Waveguide (SIW) based bandpass filter is presented in this paper. Objectives: In the proposed design, bandpass response is achieved by combining SIW structure with elliptic shaped Defected Ground Structure (DGS) cells. Methods : Simulation of the proposed structure is carried out using commercial software Ansoft High Frequency Structure Simulator (HFSS), which is a three-dimensional frequency domain electromagnetic solver based on the Finite Element Method (FEM). Analysis of three different types of DGS cells including rectangular, circular and elliptical has been carried out. Moreover, Frequency tuning is also carried out by changing the dimension of DGS. Result : Proposed filter is fabricated on the dielectric material RT duroid 5880 with the dielectric constant ɛεr=2.2, dissipation factor tanδ=4 x 10-4 and height h= 0.508 mm. The measured return loss of 25.71 dB and insertion loss of 1.24 dB with 3 dB Fractional Bandwidth (FBW) of 4.8% at the center frequency of 7 GHz. Conclusion : Good agreements are observed between the experimental results and the simulations.

scholarly journals Substrate Integrated Waveguide Filtering Slot Antenna for Ka-Band Satellite Communications

2021 ◽  
Vol 20 ◽  
pp. 63-65
Author(s):  
Yuanzhi Liu ◽  
Mustapha C.E. Yagoub
Keyword(s):  
Satellite Communication ◽  
Low Cost ◽  
Satellite Communications ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Substrate Integrated Waveguide ◽  
Cavity Resonators ◽  
Ka Band ◽  
Low Profile ◽  
Compact Size

This paper proposes a substrate integrated waveguide (SIW) filtering slot antenna. Based on four SIW cavity resonators and a slot locating on the last resonator, a filtering antenna was designed, targeting the near 20 GHz satellite communication band. Simulated in the Ansys-HFSS commercial software, it exhibits a - 10 dB impedance bandwidth of 1.5 GHz and a flat gain of 5.5 dBi in the operating frequency band. Besides, the filtering antenna has good selectivity at passband edges and features such as compact size, low profile, and low cost, making it suitable for Ka-band satellite ground terminals.

Sign in / Sign up

Export Citation Format

Share Document