In this paper the method for estimation of 1.1. Reasons for detection DOA signals' direction of arrival (DOA) directly at RF frequency without baseband conversion and without Reasons for DOA detection may be divided as demodulation is described. We will estimate DOA by a follows multiple array of antennas with an array of six-port a Radiation pattern alignment to required direction. reflectometers (SPR). To estimate an angle of arrival we have applied the RF receiver with two and three antenna elements connected to two and three SPRs. To illustrate the * Interference reduction in other directions. performance of the proposed receiver, a physical radio a Transmitter power decreasing, so decreasing channel is modeled without fading, so there exists the lineinterference level in other receivers. of-sight connection between the sources and the receivers.
Radio Frequency Identification (RFID) is very potential technology suitable for various areas of applications. From utilization in the supply chain thought traffic application to livestock tracking and person's identification and verification. Current passive RFID UHF tags are non-directional and have general radiation pattern characteristic. By managing the direction of the pattern we can gain more time required for accomplishment sophisticated functions of IC and the energetic feed increases as well. These facilities make RFID technology suitable for more advanced applications as position determination and localization in wireless ad-hoc networks. This article deals with passive open-ended two strips UHF tag reading range and possibilities of enhancing this range by utilization of intelligent antenna set in RFID tag.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.