UHF RFID reader with reflected power canceller

Pekka Pursula; Mikko Kiviranta; Heikki Seppä

doi:10.1109/LMWC.2008.2008607

UHF RFID reader with reflected power canceller

Pekka Pursula, Mikko Kiviranta, Heikki Seppä

Research output: Contribution to journal › Article › Scientific › peer-review

37 Citations (Scopus)

Abstract

Reflected power imposes severe linearity problems to the receiver in radio frequency identification (RFID) readers. In this letter, the design and realization of a ultra high frequency RFID reader with a reflected power canceller circuit based on quadrature feedback are presented. Theory and measurements of the signal and noise in the receiver are presented as a function of incident carrier power. The receiver sensitivity is even better than without the canceller with high incident carrier power: A noise spectral density at the data band is -140 dBm/Hz at +12 dBm incident carrier power. At the same time, input compression point of +15 dBm is achieved. The dynamic range of the receiver is improved by 10 dB.

Original language	English
Pages (from-to)	48-50
Journal	IEEE Microwave and Wireless Components Letters
Volume	19
Issue number	1
DOIs	https://doi.org/10.1109/LMWC.2008.2008607
Publication status	Published - 2009
MoE publication type	A1 Journal article-refereed

Keywords

Carrier suppression
high-Q active filter
reflection canceller
radio frequency identification (RFID)
ultra high frequency (UHF

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10.1109/LMWC.2008.2008607

https://publications.vtt.fi/julkaisut/muut/2009/Reader-MWCL2009.pdf

Cite this

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title = "UHF RFID reader with reflected power canceller",

abstract = "Reflected power imposes severe linearity problems to the receiver in radio frequency identification (RFID) readers. In this letter, the design and realization of a ultra high frequency RFID reader with a reflected power canceller circuit based on quadrature feedback are presented. Theory and measurements of the signal and noise in the receiver are presented as a function of incident carrier power. The receiver sensitivity is even better than without the canceller with high incident carrier power: A noise spectral density at the data band is -140 dBm/Hz at +12 dBm incident carrier power. At the same time, input compression point of +15 dBm is achieved. The dynamic range of the receiver is improved by 10 dB.",

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AU - Pursula, Pekka

AU - Kiviranta, Mikko

AU - Seppä, Heikki

PY - 2009

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N2 - Reflected power imposes severe linearity problems to the receiver in radio frequency identification (RFID) readers. In this letter, the design and realization of a ultra high frequency RFID reader with a reflected power canceller circuit based on quadrature feedback are presented. Theory and measurements of the signal and noise in the receiver are presented as a function of incident carrier power. The receiver sensitivity is even better than without the canceller with high incident carrier power: A noise spectral density at the data band is -140 dBm/Hz at +12 dBm incident carrier power. At the same time, input compression point of +15 dBm is achieved. The dynamic range of the receiver is improved by 10 dB.

AB - Reflected power imposes severe linearity problems to the receiver in radio frequency identification (RFID) readers. In this letter, the design and realization of a ultra high frequency RFID reader with a reflected power canceller circuit based on quadrature feedback are presented. Theory and measurements of the signal and noise in the receiver are presented as a function of incident carrier power. The receiver sensitivity is even better than without the canceller with high incident carrier power: A noise spectral density at the data band is -140 dBm/Hz at +12 dBm incident carrier power. At the same time, input compression point of +15 dBm is achieved. The dynamic range of the receiver is improved by 10 dB.

KW - Carrier suppression

KW - high-Q active filter

KW - reflection canceller

KW - radio frequency identification (RFID)

KW - ultra high frequency (UHF

U2 - 10.1109/LMWC.2008.2008607

DO - 10.1109/LMWC.2008.2008607

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SN - 1531-1309

VL - 19

SP - 48

EP - 50

JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 1

ER -

UHF RFID reader with reflected power canceller

Abstract

Keywords

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