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Keyword: Impedance Matching

Light Modulation Enhancement by using an Impedance Matching Scheme for a Subcarrier Multiplexed Light Transmitter

by Seiji Fukushima, Satoshi Yanagihara, Toshio Watanabe and Tsutomu Nagayama

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 6, Page # 07–11, 2021; DOI: 10.25046/aj060602

Abstract:

We propose and analyze new impedance matching schemes to enhance applied voltage to an optical modulator and light modulation for a subcarrier multiplexed light transmitter or a radio-on-fiber transmitter that carries radio-frequency signal through an optical fiber. Our proposal includes two methods using a quarter-wavelength impedance transformer and a tapered microstrip line for impedance matching…

Modeling and Design of a Compact Metal Mountable Dual-band UHF RFID Tag Antenna with Open Bent Stub Feed for Transport and Logistics Fields

by Hajar Bouazza, Aarti Bansal, Mohsine Bouya, Azeddine Wahbi, Antonio Lazaro and Abdelkader Hadjoudja

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 1, Page # 1065–1071, 2021; DOI: 10.25046/aj0601118

Abstract:

In this paper, we have modeled and designed a metal mountable tag antenna that is applied to cover two major UHF RFID bands, i.e., European (EU) (865-867 MHz) and U.S. bands (902-928 MHz). It is applied for many applications, especially in the transport and logistics fields. The tag antenna configuration utilizes microstrip configuration with open…