Optimization of heterogeneous interconnection transmission based on impedance matching for 3-D IC high-frequency application

A piezoelectric energy harvester was developed in this paper. It is actuated by the vibration leakage from the nodal position of a high-power ultrasonic cutting transducer. The harvester was excited at a low displacement amplitude (0.73 µmpp). However, its operation frequency is quite high and reaches the ultrasonic range (24.4 kHz). Compared with another low frequency harvester (66 Hz), both theoretical and experimental results proved that the advantages of this high frequency harvester include (i) high current generation capability (up to 20 mApp compared to 1.3 mApp of the 66 Hz transducer) and (ii) low impedance matching resistance (500 Ω in contrast to 50 kΩ of the 66 Hz transducer). This energy harvester can be applied either in sensing, or vibration controlling, or simply energy harvesting in a high-power ultrasonic system.

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Optimum Patch Dimension Ratio of T-Shaped Microstrip Antenna

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.684.303 ◽

2013 ◽

Vol 684 ◽

pp. 303-306

Author(s):

Eugene Rhee ◽

Ji Hoon Lee

Keyword(s):

High Frequency ◽

Microstrip Antenna ◽

Microstrip Line ◽

Return Loss ◽

Impedance Matching ◽

Feeding Method ◽

High Frequency Structure Simulator ◽

Feeding Methods ◽

Coaxial Probe ◽

Dimension Ratio

There are various feeding methods of antenna like as coaxial probe, coupling, parasitic elements, and impedance matching. This paper adopted the microstrip line method as the feeding method of the antenna. The high frequency structure simulator is used to analyze the characteristics of the T-shaped microstrip antenna with various patch dimensions. In comparison with the basic microstrip antenna, this proposed T-shaped microstrip antenna with 40.38 % of patch dimensions has the optimum characteristics of resonant frequency, return loss, and radiation pattern at 2.0 GHz band.

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Characterization and enhancement of magnetic performance of electrodeposited Ni45Fe55 on PCB for high frequency application

Journal of Magnetism and Magnetic Materials ◽

10.1016/j.jmmm.2020.166708 ◽

2020 ◽

Vol 505 ◽

pp. 166708

Author(s):

Z. Ghaferi ◽

P. McCloskey

Keyword(s):

High Frequency ◽

Magnetic Performance ◽

High Frequency Application

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Multi-layer polymer-metal structures for acoustic impedance matching in high-frequency broadband ultrasonic transducers design

2019 IEEE International Ultrasonics Symposium (IUS) ◽

10.1109/ultsym.2019.8926175 ◽

2019 ◽

Author(s):

Xinyu Yang ◽

Chunlong Fei ◽

Xinhaosun ◽

Shang Hou ◽

Jun Chen

Keyword(s):

Acoustic Impedance ◽

High Frequency ◽

Impedance Matching ◽

Ultrasonic Transducers ◽

Metal Structures ◽

Polymer Metal

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Metamaterial extended CSRR based monopole antenna for wideband applications

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i1.1.10145 ◽

2017 ◽

Vol 7 (1.1) ◽

pp. 461 ◽

Cited By ~ 1

Author(s):

Pronami Bora ◽

Mona Mudaliar ◽

Yuvraj Baburao Dhanade ◽

K Sreelakshm ◽

Chayan Paul ◽

...

Keyword(s):

Patch Antenna ◽

High Frequency ◽

Impedance Matching ◽

Monopole Antenna ◽

High Frequency Structure Simulator ◽

Rectangular Patch ◽

Measurement Results ◽

Defected Ground Structures ◽

Ground Structures ◽

Ku Band

A metamaterial extended microstrip rectangular patch antenna with CSRR loading and defected ground structures(DGS) is proposed for wideband applications with band notching at the frequencies of KU band. The proposed antenna is designed by embedding it on Rogers RT/Duroid 5880 substrate with good impedance matching of 50 Ω at the feedline.The high frequency structure simulator (HFSS) is used to design and simulate the antennas parameters in the operating band. Measurement results confirm the antenna characteristics as predicted in the simulation with a slight shift in frequencies.

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Design of a Multiple Band Vehicle-Mounted Antenna

International Journal of Antennas and Propagation ◽

10.1155/2019/6098014 ◽

2019 ◽

Vol 2019 ◽

pp. 1-11

Author(s):

Yong Cheng ◽

Jing Lu ◽

Can Wang

Keyword(s):

Wireless Sensor Network ◽

Mobile Communication ◽

High Frequency ◽

Impedance Matching ◽

Low Frequency ◽

Metal Plate ◽

Wireless Sensor ◽

Wireless System ◽

Car T ◽

Multiple Band

This paper designs a vertically polarized, horizontal, omnidirectional vehicle antenna for the mobile communication band, covering the available frequency bands of the wireless sensor network and 5G. The antenna is composed of semi-T monopole and semicone monopole, which are placed vertically on the metal plate, especially suitable for being mounted on top of a car. T-branch mainly works at low frequency, and cone branch mainly works at high frequency. The cone branch adopts tapered structure in order to improve the impedance matching of antenna and increase the bandwidth of antenna. The antenna can be miniaturized by cutting the antenna in half. The operating frequencies of the antenna are 770 MHz–1000 MHz and 1.7 GHz–3.78 GHz which can cover multiple wireless system bands, including GSM, LTE, and 5G.

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