A 262 MHz Narrow Band RF Transceiver for Korean M-Bus Smart Metering Service

In this paper, a 262 MHz NB-IoT RF transceiver IC for Korean M-Bus smart metering service is presented. To mitigate the DC noise and 1/f noise near the narrow signal band and prevent SNR degradation caused by adjacent channel interference, low IF receiver with 4th order poly-phase filter is employed...

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Bibliographic Details
Published inJournal of semiconductor technology and science Vol. 24; no. 3; pp. 199 - 207
Main Authors Park, Dong-Wuk, Byeon, Ki-Ryun, Lee, Gi-Sung, Lim, Tae-Hee, Jo, Kyoung-Hwan, Oh, Tae Hyoun, Park, Hyung-Chul, Eo, Yun-Seong
Format Journal Article
LanguageEnglish
Published 대한전자공학회 01.06.2024
Subjects
전기공학
Korean M-Bus
NB-IoT
RF transceiver
high power transmitter
low sensitivity
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Summary:In this paper, a 262 MHz NB-IoT RF transceiver IC for Korean M-Bus smart metering service is presented. To mitigate the DC noise and 1/f noise near the narrow signal band and prevent SNR degradation caused by adjacent channel interference, low IF receiver with 4th order poly-phase filter is employed. The prototype is fabricated using the 0.18 μm CMOS process and has a size of 3.3 mm x 3.1 mm. It consumes 41.4/37.8 mW in transmit and receive modes, respectively. The measured results show that the maximum Tx power and OIP3 are +15.4/24 dBm and the receiver sensitivity is -105.4 dBm for PER 10-1 and 50-kbps GFSK modulation with 56 dBc ACR. The measured performance can provide the several-km communication distance for the smart monitoring sensors. KCI Citation Count: 0
ISSN:1598-1657
2233-4866
2233-4866
1598-1657
DOI:10.5573/JSTS.2024.24.3.199