scholarly journals Flexible substrate technology for millimeter wave wireless power transmission

2016 ◽  
Vol 3 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Zhening Yang ◽  
Alexandru Takacs ◽  
Samuel Charlot ◽  
Daniela Dragomirescu
Keyword(s):  
Millimeter Wave ◽  
Flip Chip ◽  
Power Transmission ◽  
Flexible Substrate ◽  
Dipole Antenna ◽  
60 Ghz ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Network Nodes ◽  
V Band

In this paper, a technology based on thin flexible polyimide substrate (Kapton) to develop antennas for millimeter wave wireless power transmission is presented. Firstly, we characterize the Kapton polyimide (relative permittivity and loss tangent) using a ring resonator method up to V band. A 60 GHz patch antenna is designed, fabricated, and measured to validate our technology. Crossed-dipoles array antennas at Kuband and K band for energy harvesting are also designed, fabricated, and measured. Then a prototype of crossed-slot dipole antenna at V band is proposed. Finally, a resistivity characterization of Au bump used in flip-chip packaging is done, which leads us one step further toward aheterogeneous integration on flexible substrate of different components for Wireless Sensor Network nodes.

scholarly journals Study the Effect of Using Low-Cost Dielectric Lenses with Printed Log-Periodic Dipole Antennas for Millimeter-Wave Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Osama M. Haraz ◽  
Abdel Razik Sebak ◽  
Saleh Alshebeili
Keyword(s):  
Millimeter Wave ◽  
Low Cost ◽  
Side Lobe ◽  
Dipole Antenna ◽  
Impedance Bandwidth ◽  
60 Ghz ◽  
V Band ◽  
Wave Radar ◽  
Dielectric Lens ◽  
Peak Gain

Design of V-band high-gain printed log periodic dipole array (PLPDA) antenna loaded with a low-cost spherical dielectric lens is introduced. The proposed antenna consists of microstrip-line-fed log-periodic dipole antenna designed to operate in the V-band with a peak gain of 12.64 dBi at 60 GHz. To enhance the antenna gain, a dielectric lens is installed. The antenna prototype is fabricated and then tested experimentally using Agilent E8364B PNA Network Analyzer. Experimental results agree well with the simulated ones. The simulated results show that the proposed antenna can work from 42 GHz up to 82 GHz with a fractional impedance bandwidth of 64.5% covering the whole V-band (50–75 GHz). At 60 GHz, the proposed antenna has peak gain of 26.79 dBi with a gain variation of 3.5 dBi across the whole V-band with stable radiation patterns over the operating band. The proposed PLPDA antenna achieves good side-lobe suppression, excellent front-to-back ratio in bothE- andH-planes, and low cross-polarization levels over the entire frequency range. These unique features will make this antenna suitable for different interesting applications such as millimeter-wave radar and imaging applications.

scholarly journals Investigation on a 220 GHz Quasi-Optical Antenna for Wireless Power Transmission

Electronics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 634
Author(s):  
Meng Han ◽  
Xiaotong Guan ◽  
Moshe Einat ◽  
Wenjie Fu ◽  
Yang Yan
Keyword(s):  
Gaussian Beam ◽  
Millimeter Wave ◽  
Power Transmission ◽  
Divergence Angle ◽  
Wave Radiation ◽  
Optical Antenna ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Output Beam ◽  
Long Distance

This paper investigates a 220 GHz quasi-optical antenna for millimeter-wave wireless power transmission. The quasi-optical antenna consists of an offset dual reflector, and fed by a Gaussian beam that is based on the output characteristics of a high-power millimeter-wave radiation source-gyrotron. The design parameter is carried on by a numerical code based on geometric optics and vector diffraction theory. To realize long-distance wireless energy transmission, the divergence angle of the output beam must be reduced. Electromagnetic simulation results show that the divergence angle of the output beam of the 5.6 mm Gaussian feed source has been significantly reduced by the designed quasi-optical antenna. The far-field divergence angle of the quasi-optical antenna in the E plane and H plane is 1.0596° and 1.0639°, respectively. The Gaussian scalar purity in the farthest observation field (x = 1000 m) is 99.86%. Thus, the quasi-optical antenna can transmit a Gaussian beam over long-distance and could be used for millimeter-wave wireless power transmission.

Data Transmission Using Original Coils in Resonant Wireless Power Transmission

2011 ◽  
Vol E94-B (11) ◽  
pp. 3172-3174 ◽  
Author(s):  
Takashi MARUYAMA ◽  
Tatsuya SHIMIZU ◽  
Mamoru AKIMOTO ◽  
Kazuki MARUTA
Keyword(s):  
Data Transmission ◽  
Power Transmission ◽  
Wireless Power ◽  
Wireless Power Transmission
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