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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | See, T.S.P. Xianming Qing Zhi Ning Chen Chean Khan Goh Tat Meng Chiam |
| Copyright Year | 2010 |
| Description | Author affiliation: Institute for Infocomm Research, Singapore, 1 Fusionopolis Way, #21-01 Connexis, South Tower, Singapore 138632 (See, T.S.P.; Xianming Qing; Zhi Ning Chen; Chean Khan Goh; Tat Meng Chiam) |
| Abstract | The Medical Implant Communication Service (MICS), which was allocated by the Federal Communication Committee (FCC) on a shared, secondary basis in 1999, refers to a specification for using a frequency band between 402 to 405 MHz in communication with medical implants [1, 2]. It allows bi-directional radio communication with a pacemaker or other electronic implants. The maximum transmit power is limited to 25 µW, or −16 dBm, in order to reduce the risk of interfering with other users within the same band. The maximum usable bandwidth at any instant is 300 kHz, which makes it a low data rate system compared with WiFi (5.8GHz) or Bluetooth (2.4GHz). Other frequencies considered for implant communication include 915 MHz, 1.5 GHz, and 3.1–10.6 GHz ultra-wideband (UWB). The frequency band of 902–928 MHz is one of the Industrial, Scientific, and Medical (ISM) bands, commonly abbreviated as the 915 MHz ISM band. In this band, there are no restrictions to the application or the duty cycle. Furthermore, the allowed power output is considerably higher. Due to the lack of restrictions and higher allowed power, this band is very popular for unlicensed short range applications including audio and video transmissions. The FCC section 15.249 allows 50 mV/m of electrical field strength at a distance of 3 meters within the frequency band of 902–928 MHz. This corresponds to an EIRP of −1.23 dBm. A higher output power of up to 30 dBm is permitted if the system employs some form of spread spectrum such as frequency hopping or direct sequence spread spectrum since they are less likely to interfere with other systems and are also immune to interference from other systems. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 307928 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424449675 |
| ISSN | 15223965 |
| DOI | 10.1109/APS.2010.5561947 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-07-11 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Antenna measurements Attenuation Dipole antennas Atmospheric modeling Attenuation measurement Probes Implants |
| Content Type | Text |
| Resource Type | Article |
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