scholarly journals Loss Computation of Multilayer Coplanar Waveguide using Single Layer Reduction Method

2012 ◽  
Vol 2 (6) ◽  
pp. 174-181
Author(s):  
A. K. Verma ◽  
Paramjeet Singh
Keyword(s):  
Reduction Method ◽  
Coplanar Waveguide ◽  
Single Layer

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 Simplified Printed Log-Periodic Dipole Array Antenna Fed by CBCPW

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Guohua Zhai ◽  
Yong Cheng ◽  
Qiuyan Yin ◽  
Shouzheng Zhu ◽  
Jianjun Gao
Keyword(s):  
Coplanar Waveguide ◽  
Single Layer ◽  
Measured Data ◽  
Simple Approach ◽  
Geometric Features ◽  
Wide Bandwidth ◽  
Broad Bandwidth ◽  
Low Profile ◽  
Low Insertion Loss ◽  
Good Agreement

A novel simple approach for designing single-layer printed log-periodic dipole array (PLPDA) antenna fed by conductor-backed coplanar waveguide (CBCPW) is presented. The PLPDA antenna has the merits of wide bandwidth, low profile, and stable radiation pattern, which should be fed by the balanced line. The balanced line, created by the geometric features of the CBCPW, provides a balun with a considerably wide bandwidth with low profile, broad bandwidth, low insertion loss, and so forth. The prototype of the proposed CBCPW-fed printed log-periodic array at Ka band is designed and fabricated; the measured data are in good agreement with the simulated results.

A Compact Coplanar Waveguide (CPW)-Fed Zeroth-Order Resonant Filter for Bandpass Applications

Frequenz ◽  
2017 ◽  
Vol 71 (7-8) ◽  
Author(s):  
Dilip Kumar Choudhary ◽  
Raghvendra Kumar Chaudhary
Keyword(s):  
Return Loss ◽  
Tuning Fork ◽  
Filter Design ◽  
Coplanar Waveguide ◽  
Ground Plane ◽  
Single Layer ◽  
Experimental Result ◽  
Zeroth Order ◽  
Centre Frequency ◽  
Filter Size

AbstractA new CPW-fed bandpass filter based on zeroth order resonant (ZOR) technique is presented in this paper. Proposed filter structure is designed on a CPW single layer where via is not required, hence reduces fabrication complexity. The property of metamaterial of ZOR has been utilized to reduce the filter size. The proposed structure is symmetrically CPW-fed and contains tuning-fork stub, which connects patch to CPW ground plane. The metamaterial properties are characterized by plotting dispersion diagram of proposed structure. The experimental result of proposed filter design shows an insertion loss of 0.51 dB, return loss of 22.5 dB with fractional bandwidth 61.5 % at centre frequency 2.60 GHz. The size of the filter is 0.45 λg×0.36 λg (λg is the guided wavelength at centre frequency).

scholarly journals Performance Enhancement of mm-Wave Phased Arrays for Mobile Terminals Through Grounded Coplanar Waveguide Feeding Networks With via Fences

2021 ◽  
Vol 2 ◽  
Author(s):  
Jae-Yeong Lee ◽  
Jaehyun Choi ◽  
Bumhyun Kim ◽  
Yerim Oh ◽  
Wonbin Hong
Keyword(s):  
Phased Arrays ◽  
Performance Enhancement ◽  
Coplanar Waveguide ◽  
Experimental Studies ◽  
Single Layer ◽  
Power Divider ◽  
Electromagnetic Bandgap ◽  
Mobile Terminals ◽  
One Dimensional ◽  
High Impedance

This paper presents a design methodology focused on feeding networks that can improve the insertion loss and coverage efficiencies of millimeter-wave (mm-Wave) phased arrays in mobile terminals. This enhancement is accomplished by using a grounded coplanar waveguide (GCPW) transmission line (TL) with via fences fabricated on single-layer FR-4 PCB. The exemplified 8-element phased arrays incorporating a compact one-dimensional electromagnetic bandgap (1-D EBG) antenna are fed through a 1 × 8 T-junction power divider, which includes the predetermined phased delay lines. To achieve high radiation performance with minimum leakage power or spurious waves in the T-junction power divider, an island-shape GCPW TL topology with via fences featuring high-impedance surfaces (HIS) is devised and fabricated. For further investigation on the radiation performance and spherical coverage of the mm-Wave mobile antenna, a mobile device prototype equipped with two sets of the 8-element phased arrays is prepared and studied. Through extensive simulation and experimental studies, it can be ascertained that the proposed GCPW TL topology with via fences can improve the realized gain at a coverage efficiency of 50% by more than 3 dB, between 26 and 36 GHz.

scholarly journals Low-Cost Printed Flexible Antenna by Using an Office Printer for Conformal Applications

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Kashif Nisar Paracha ◽  
Sharul Kamal Abdul Rahim ◽  
Hassan Tariq Chattha ◽  
Saqer Saleh Aljaafreh ◽  
Sabih ur Rehman ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Low Cost ◽  
Coplanar Waveguide ◽  
Single Layer ◽  
Nanoparticle Layer ◽  
Layer Deposition ◽  
5G Network ◽  
Flexible Antenna ◽  
Nanoparticle Ink ◽  
Pet Substrate

A low-cost inkjet printing method for antenna fabrication on a polyethylene terephthalate (PET) substrate is presented in this paper. An office inkjet printer is used to have desired patterns of silver nanoparticle ink on the PET substrate without any postprocessing. Silver nanoparticle ink cures instantly as soon as it is ejected from the printer on a chemically treated PET substrate. The thickness of the silver nanoparticle layer was measured to be 300 nm with a sheet resistance of as low as 0.3 Ω/sq and a conductivity around 1.11 × 107 S/m with single layer deposition. A coplanar waveguide- (CPW-) fed Z-shape planar antenna on the PET substrate achieved the measured radiation efficiency of 62% and the IEEE gain of 1.44 dBi at 2.45 GHz. The printed antenna is also tested in bending conditions to ascertain its performance for the Internet of things (IoT) conformal applications for the future 5G network.

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