Abstract
The contribution of this work is to propose a novel trisection bandpass filter (BPF) using only one ultra-miniature substrate-integrated waveguide (SIW) cavity. The SIW cavity is composed of two substrate layers and a very thin prepreg layer for binding purpose. A circular patch is deployed on the cavity's middle metal layer and is evenly trisected into three identical pieces. Each piece is shorted to the cavity's bottom face by a blind via. The cavity together with the via-shorted trisected patches form the trisection filter's resonators. This trisected-patch-loaded SIW cavity has the dominant-mode resonance frequency much lower than that of the standard patch-free SIW cavity. The down shift in the resonance frequency of the proposed resonator structure has effectively led to a significant circuit-size reduction. When compared with a three-pole BPF consisting of three standard patch-free SIW cavities, the size reduction rate of our proposed BPF requiring only one SIW cavity is as high as 97.47%, which might be the highest record achieved so far. An experiment has been conducted to verify the proposed circuit design. Besides ultra-circuit miniaturization, the measured upper stopband with the rejection of larger than 20 dB is as wide as 2.38 times the passband center frequency.
| Original language | English |
|---|---|
| Pages (from-to) | 2826-2831 |
| Number of pages | 6 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 61 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2019 Dec 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
}
Ultra-miniaturization design of substrate-integrated waveguide cavity trisection bandpass filter. / Mimsyad, Muhammad; Hsu, Chung I.G.; Ho, Min Hua.
In: Microwave and Optical Technology Letters, Vol. 61, No. 12, 01.12.2019, p. 2826-2831.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ultra-miniaturization design of substrate-integrated waveguide cavity trisection bandpass filter
AU - Mimsyad, Muhammad
AU - Hsu, Chung I.G.
AU - Ho, Min Hua
PY - 2019/12/1
Y1 - 2019/12/1
N2 - The contribution of this work is to propose a novel trisection bandpass filter (BPF) using only one ultra-miniature substrate-integrated waveguide (SIW) cavity. The SIW cavity is composed of two substrate layers and a very thin prepreg layer for binding purpose. A circular patch is deployed on the cavity's middle metal layer and is evenly trisected into three identical pieces. Each piece is shorted to the cavity's bottom face by a blind via. The cavity together with the via-shorted trisected patches form the trisection filter's resonators. This trisected-patch-loaded SIW cavity has the dominant-mode resonance frequency much lower than that of the standard patch-free SIW cavity. The down shift in the resonance frequency of the proposed resonator structure has effectively led to a significant circuit-size reduction. When compared with a three-pole BPF consisting of three standard patch-free SIW cavities, the size reduction rate of our proposed BPF requiring only one SIW cavity is as high as 97.47%, which might be the highest record achieved so far. An experiment has been conducted to verify the proposed circuit design. Besides ultra-circuit miniaturization, the measured upper stopband with the rejection of larger than 20 dB is as wide as 2.38 times the passband center frequency.
AB - The contribution of this work is to propose a novel trisection bandpass filter (BPF) using only one ultra-miniature substrate-integrated waveguide (SIW) cavity. The SIW cavity is composed of two substrate layers and a very thin prepreg layer for binding purpose. A circular patch is deployed on the cavity's middle metal layer and is evenly trisected into three identical pieces. Each piece is shorted to the cavity's bottom face by a blind via. The cavity together with the via-shorted trisected patches form the trisection filter's resonators. This trisected-patch-loaded SIW cavity has the dominant-mode resonance frequency much lower than that of the standard patch-free SIW cavity. The down shift in the resonance frequency of the proposed resonator structure has effectively led to a significant circuit-size reduction. When compared with a three-pole BPF consisting of three standard patch-free SIW cavities, the size reduction rate of our proposed BPF requiring only one SIW cavity is as high as 97.47%, which might be the highest record achieved so far. An experiment has been conducted to verify the proposed circuit design. Besides ultra-circuit miniaturization, the measured upper stopband with the rejection of larger than 20 dB is as wide as 2.38 times the passband center frequency.
UR - http://www.scopus.com/inward/record.url?scp=85069893661&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069893661&partnerID=8YFLogxK
U2 - 10.1002/mop.31950
DO - 10.1002/mop.31950
M3 - Article
AN - SCOPUS:85069893661
VL - 61
SP - 2826
EP - 2831
JO - Microwave and Optical Technology Letters
JF - Microwave and Optical Technology Letters
SN - 0895-2477
IS - 12
ER -