Introduction to mm-Wave Silicon Devices, Circuits, and Systems

  • Ali M. Niknejad
  • Hossein Hashemi

Silicon-based RF and microwave technology has had a dramatic impact on the world of wireless technology. Today we can access voice/data and entertainment in virtually every corner of the globe, from short range Bluetooth and WiFi networks, to cellular and satellite networks, to meet different range and throughput requirements. A laptop computer without wireless capability is unthinkable today whereas ten years ago the technologies did not exist at all. What do the next ten years promise? What gaps in wireless technology exist even today? Perhaps the most obvious missing link is between the various peripherals that we carry with us, such as cellular phones or personal digital assistants (or “smart phones” if you prefer), digital cameras, music and video players (such as the ubiquitous iPod), laptops, peripherals such as external hard drives and monitors. The case of the mobile phone is particulary important since the existing wireless connectivity is either too slow and power hungry (Bluetooth) or designed and optimized for longer ranges (WiFi). What is missing is a wireless USB capability that can support high data rates demanded by large datarate multimedia applications. Wireless technology has been conspicuously absent from MP3 music players (such as Apple’s iPod), which are ideal candidates for downloading music and video. While nascent UWB technology is a potential solution, it has some shortcomings including problems with interference and a limited data rate. The 3–5 GHz spectrum is relatively crowded with many interferers appearing in the WiFi bands. A UWB system has very limited transmit power (average of about 0 dBm) which means that bandwidth has to be traded to overcome the limited SNR. In comparison, the 60 GHz band offers the same amount of spectrum (7 GHz), virtually no interference, and up to 40 dBm of transmit power. Given this bandwidth, it is easy to envision a wireless link capable of supporting multi-Gb/s communication between devices transporting large volumes of media information (video).

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Ali M. Niknejad
    • 1
  • Hossein Hashemi
    • 2
  1. 1.University of CaliforniaBerkeley
  2. 2.University of Southern CaliforniaLos Angeles

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