An active tagging system using circular polarization modulation

Kossel, Marcel; Benedickter, H.; Baechtold, W.

doi:10.1109/mwsym.1999.780274

Cited by 32 publications

(20 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The linearly polarized reader receives more than 3dB power, when the polarizations of the tag and the reader are matched. In some wireless communication systems, the circular polarization modulation (Fries et al, 2000;Kossel, Kung, et al, 1999), which is well adapted to the low rate RFID systems, is another choice that can reduce the requirement of the frequency band, and simplifies the data communication, as shown in Fig. 19.…”

Section: Circular Polarization Modulation and Design Of The Circularlmentioning

confidence: 99%

Design of Antennas for RFID Application

Zhang¹,

Jiao²,

Zhang³

et al. 2009

Development and Implementation of RFID Technology

View full text Add to dashboard Cite

Section: Circular Polarization Modulation and Design Of The Circularlmentioning

confidence: 99%

Design of Antennas for RFID Application

Zhang¹,

Jiao²,

Zhang³

et al. 2009

Development and Implementation of RFID Technology

View full text Add to dashboard Cite

“…Antennas with circular or linear polarization reconfigurable features have many noticeable advantages such as enhancing the communication channel capacity, avoiding multipath interference, and being capable of polarization coding [1][2][3]. Many studies have been conducted in the domain of polarization reconfigurable antennas, as reviewed in [4]- [8].…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable multi-slot antenna for bio-medical applications

Huitema

Wong

Lin

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

View full text Add to dashboard Cite

Abstract-We present a polarization-reconfigurable multislot antenna with four switchable linear polarizations (as 0⁰, ± 45⁰ and 90⁰) for implant communications. The design is based on four bow-tie shaped slots acting as radiators etched on a circular metallization plane with 45⁰ rotated sequential arrangements. RF switches based on PIN diodes are connected across each slot in order to modify the radiators polarization. We apply a differential source to feed the slot antenna through a groundtapered Balun. In order to obtain a broadside radiation pattern, a reflector is placed at the quarter-wave distance below the radiator. Measured results are showing that the realized multislot antenna can generate four switchable linear polarization states with wide bandwidth and stable gain. This polarization diversity feature makes the proposed antenna highly attractive for implant and body-centric wireless communication systems for minimizing the multi-path distortion and polarization mismatching in the wireless channels.

show abstract

“…The concept of digital modulation by exploiting circular polarization is introduced in an active tagging system [1] in which an interrogator and a remote tag have a half duplex communication. Each of the orthogonal hands of circular polarization [2] represents an information bit as a modulation technique which simplifies demodulation process.…”

Section: Introductionmentioning

confidence: 99%