Single-Layer Mode Composite Coplanar Waveguide Dual-Band Filter With Large Frequency Ratio

2020 ◽  
Vol 68 (6) ◽  
pp. 2320-2330
Author(s):  
Yihong Su ◽  
Yong Fan ◽  
Xian Qi Lin ◽  
Ke Wu
Keyword(s):  
Frequency Ratio ◽  
Coplanar Waveguide ◽  
Single Layer ◽  
Dual Band ◽  
Band Filter ◽  
Layer Mode ◽  
Large Frequency

Dual Band Slot Antenna for 3.5 WiMAX and 5.8 WLAN

2014 ◽  
Vol 68 (1) ◽  
Author(s):  
Sahar Chagharvand ◽  
M. R. B. Hamid ◽  
M. R. Kamarudin ◽  
Mohsen Khalily
Keyword(s):  
Radiation Pattern ◽  
Coplanar Waveguide ◽  
Single Layer ◽  
Dual Band ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Antenna Gain ◽  
Dual Bandwidth ◽  
Electromagnetic Performance ◽  
Good Agreement

This paper presents a single layer planar slot antenna for dual band operation. The antenna is fed by a coplanar waveguide (CPW) with two inverted C-shaped resonators to achieve the dual band operation. The impedance bandwidth for ǀS11ǀ < -10dB is 14% in lower band and 7% in higher band. The antenna prototype’s electromagnetic performance, impedance bandwidth, radiation pattern, and antenna gain were measured. The proposed configuration offers a relatively compact, easy to fabricate and dual band performance providing gain between 2 and 4 dBi. The designed antenna has good dual bandwidth covering 3.5 WiMAX and 5.8 WLAN tasks. Experimental and numerical results also showed good agreement after comparison.

scholarly journals Planar Dual-Band Branch-Line Coupler With Large Frequency Ratio

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 33188-33195
Author(s):  
Lei Xia ◽  
Jia-Lin Li ◽  
Baidenger Agyekum Twumasi ◽  
Peng Liu ◽  
Shan-Shan Gao
Keyword(s):  
Frequency Ratio ◽  
Dual Band ◽  
Branch Line ◽  
Large Frequency
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