Abstract
This article presents the 90° hybrid directional 3-dB coupler design with a wideband performance. The main part of the proposed coupler is built on a folded half-mode substrate integrated waveguide (FHMSIW) structure and the feed is composed of microstrip line and stripline. The FHMSIW is implemented by PCB technology which possesses the merits of compact size, low cost, light weight, low profile, high power handling capability, easy integration with planar transmission line, and possibly low insertion losses. In designing the circuit's feed, a quarter-wavelength stripline is placed between the coupler's main part and each microstrip I/O port. The stripline works as an impedance transformer, which increases circuit's bandwidth (BW) and reduces the reflection. The acquired fractional bandwidth (FBW) is 47.2% with the coupler's central frequency set to 4.5 GHz. The averaged transmission and coupling losses are around 1 dB and the isolation is better than 20 dB. Experiment is conducted to validate the circuit performance. The measured data are in good agreements with the simulated ones.
| Original language | English |
|---|---|
| Pages (from-to) | 1139-1141 |
| Number of pages | 3 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 58 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2016 May 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering
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Wideband coupler of folded half mode substrate integrated waveguide design with combined microstrip and stripline feed. / Hong, Wanchu; Ho, Min-Hua; Feng, Jun Jia.
In: Microwave and Optical Technology Letters, Vol. 58, No. 5, 01.05.2016, p. 1139-1141.Research output: Contribution to journal › Article
TY - JOUR
T1 - Wideband coupler of folded half mode substrate integrated waveguide design with combined microstrip and stripline feed
AU - Hong, Wanchu
AU - Ho, Min-Hua
AU - Feng, Jun Jia
PY - 2016/5/1
Y1 - 2016/5/1
N2 - This article presents the 90° hybrid directional 3-dB coupler design with a wideband performance. The main part of the proposed coupler is built on a folded half-mode substrate integrated waveguide (FHMSIW) structure and the feed is composed of microstrip line and stripline. The FHMSIW is implemented by PCB technology which possesses the merits of compact size, low cost, light weight, low profile, high power handling capability, easy integration with planar transmission line, and possibly low insertion losses. In designing the circuit's feed, a quarter-wavelength stripline is placed between the coupler's main part and each microstrip I/O port. The stripline works as an impedance transformer, which increases circuit's bandwidth (BW) and reduces the reflection. The acquired fractional bandwidth (FBW) is 47.2% with the coupler's central frequency set to 4.5 GHz. The averaged transmission and coupling losses are around 1 dB and the isolation is better than 20 dB. Experiment is conducted to validate the circuit performance. The measured data are in good agreements with the simulated ones.
AB - This article presents the 90° hybrid directional 3-dB coupler design with a wideband performance. The main part of the proposed coupler is built on a folded half-mode substrate integrated waveguide (FHMSIW) structure and the feed is composed of microstrip line and stripline. The FHMSIW is implemented by PCB technology which possesses the merits of compact size, low cost, light weight, low profile, high power handling capability, easy integration with planar transmission line, and possibly low insertion losses. In designing the circuit's feed, a quarter-wavelength stripline is placed between the coupler's main part and each microstrip I/O port. The stripline works as an impedance transformer, which increases circuit's bandwidth (BW) and reduces the reflection. The acquired fractional bandwidth (FBW) is 47.2% with the coupler's central frequency set to 4.5 GHz. The averaged transmission and coupling losses are around 1 dB and the isolation is better than 20 dB. Experiment is conducted to validate the circuit performance. The measured data are in good agreements with the simulated ones.
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UR - http://www.scopus.com/inward/citedby.url?scp=84961828090&partnerID=8YFLogxK
U2 - 10.1002/mop.29748
DO - 10.1002/mop.29748
M3 - Article
AN - SCOPUS:84961828090
VL - 58
SP - 1139
EP - 1141
JO - Microwave and Optical Technology Letters
JF - Microwave and Optical Technology Letters
SN - 0895-2477
IS - 5
ER -