Conference Paper

A sensor system on chip for wireless microsystems

Dept. of Electron. & Electr. Eng., Glasgow Univ.
DOI: 10.1109/ISCAS.2006.1692720 Conference: Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Source: DBLP

ABSTRACT Recent years have seen the rapid development of microsensor technology, system on chip design, wireless technology and ubiquitous computing. When assembled into a complex microsystem the technologies become powerful tools in medical diagnostics, environmental monitoring and personal connectivity. In this paper we describe the demonstration of a silicon chip that has all the attributes required of a microsystem for use in these applications. The design methodology we have employed is a variant of the system on chip approach whereby many intellectual property blocks are integrated at a high level in the design flow. Our intellectual property blocks include the analogue sensor instrumentation for temperature and pH, a data multiplexing and conversion module, a digital platform based around an 8-bit microcontroller, data encoding for spread-spectrum wireless transmission and a RF section requiring very few off-chip components. The chip has been fully evaluated and tested by connection to external sensors. Each block has well defined interfaces so that they can be easily reused in future designs targeted to different applications

0 Bookmarks
 · 
153 Views
  • [Show abstract] [Hide abstract]
    ABSTRACT: This letter presents the smallest reported 5 GHz receiver chip (1.3 mm<sup>2</sup>) with an on-chip antenna in standard 0.13 mum CMOS process. The miniaturization is achieved by placing the circuits inside a meandered antenna. The on-chip antenna is conjugately matched to the low noise amplifier (LNA) over a wide frequency range. The design methodology for co-design of the on-chip antenna and LNA is described. The LNA is completely differential, consumes only 8 mW of power and provides a gain of 21 dB. Design tradeoffs and measurement challenges are given.
    IEEE Microwave and Wireless Components Letters 11/2009; · 1.78 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This paper presents an analysis of the noise propagated across the substrate and the electromagnetic contamination in a control chip for a wireless lab-in-a-pill. This chip integrates analogue, digital and radio frequency circuits monolithically to reduce the physical size, power consumption and packaging cost of the capsule. Several approaches to minimise noise effects were proposed and incorporated in a recently fabricated chip. Despite the presence of high frequency noise, the experimental results revealed that 8-bit A/D conversion of the sensory signals was possible with a 3 V power supply.
    Sensors, 2004. Proceedings of IEEE; 11/2004
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This paper highlights the challenges of an emergent field, namely, on-chip antenna design. Consistent with the RF System-on-Chip (SoC) concept, co-design strategy for circuits and on-chip antennas is described. A number of design and layout issues, arising from the highly integrated nature of this kind of systems, are discussed. The characterization difficulties related to on-chip antennas radiation properties are also highlighted. Finally, a novel on-wafer test fixture is proposed to measure the gain and radiation pattern of the on-chip antennas in the anechoic chamber.
    Antenna Technology and Applied Electromagnetics & the American Electromagnetics Conference (ANTEM-AMEREM), 2010 14th International Symposium on; 08/2010

Full-text (5 Sources)

Download
163 Downloads
Available from
May 17, 2014