Unified Antenna Temperature

In discussions of radio noise analysis, the noise coupled from radio to its connected antenna is generally neglected. This coupled noise can degrade signal to noise ratio of the radio receiver and it is the root cause of the radio receiver's radiated desensitization, which is a very common electromagnetic interference problem for compacted radio receivers. A unified antenna noise temperature definition is presented in this paper. With the general definition, the overall receiver noise analysis has theoretical integrity. The overall antenna temperature for tightly coupled radios such as cellphones can be measured using the unified antenna noise temperature definition in conjunction with radio conducted, radiated, and a real environment test. The unified antenna noise temperature definition allows the radio engineer to understand the mechanisms of the receiver-radiated desensitization. With the unified antenna temperature definition, radio radiated sensitivity, effective isotropic sensitivity, and total isotropic sensitivity can be mathematically defined.

[1]  H.T. Friis,et al.  Noise Figures of Radio Receivers , 1944, Proceedings of the IRE.

[2]  Marvin L. Livingston.  The Effect of Antenna Characteristics on Antenna Noise Temperature and System SNR , 1961, IRE Transactions on Space Electronics and Telemetry.

[3]  P. J. E. Peebles,et al.  Cosmic Black-Body Radiation , 1965 .

[4]  E. Maanders,et al.  Antenna noise temperature , 1968 .

[5]  George Ploussios,et al.  City Noise and Its Effect Upon Airborne Antenna Noise Temperatures at UHF , 1968, IEEE Transactions on Aerospace and Electronic Systems.

[6]  N. Grody,et al.  Antenna temperature for a scanning microwave radiometer , 1975 .

[7]  G. Thiele,et al.  Antenna theory and design , 1981 .

[8]  Constantine A. Balanis,et al.  Antenna Theory: Analysis and Design , 1982 .

[9]  T. Kozu,et al.  Comparison of antenna noise temperature with rain attenuation of a satellite beacon signal at 12 GHz , 1986 .

[10]  D. Pozar.  Microwave Engineering , 1990 .

[11]  C. Toker,et al.  Noise in the Presence of Coupling Among Antenna Elements , 1998, 1998 28th European Microwave Conference.

[12]  T.H. Hubing,et al.  Model for estimating radiated emissions from a printed circuit board with attached cables due to Voltage-driven sources , 2005, IEEE Transactions on Electromagnetic Compatibility.

[13]  Stephen A. Maas,et al.  Noise In Linear And Nonlinear Circuits , 2005 .

[14]  A.. Kisliansky,et al.  Direction of Arrival Estimation in the Presence of Noise Coupling in Antenna Arrays , 2007, IEEE Transactions on Antennas and Propagation.

[15]  F. Marzano,et al.  Predicting Antenna Noise Temperature Due to Rain Clouds at Microwave and Millimeter-Wave Frequencies , 2006, IEEE Transactions on Antennas and Propagation.

[16]  Tom Y Otoshi,et al.  Noise Temperature Theory and Applications for Deep Space Communications Antenna Systems , 2008 .

[17]  Fabio Zito,et al.  CMOS fully-integrated wireless temperature sensors with on-chip antenna , 2009, 2009 European Microwave Conference (EuMC).

[18]  Karl-August Steinhauser,et al.  Influence of antenna noise temperature and downtilt on WCDMA base station capacity , 2009, 2009 3rd European Conference on Antennas and Propagation.

[19]  Rob Maaskant,et al.  Unified Definitions of Efficiencies and System Noise Temperature for Receiving Antenna Arrays , 2010, IEEE Transactions on Antennas and Propagation.

[20]  Rahul Bhattacharyya,et al.  RFID tag antenna based temperature sensing , 2010, 2010 IEEE International Conference on RFID (IEEE RFID 2010).

[21]  W. Marsden.  I and J , 2012 .

[22]  S. R. Best,et al.  Realized Noise Figure of the General Receiving Antenna , 2013, IEEE Antennas and Wireless Propagation Letters.

[23]  Jun Fan,et al.  Radiated Two-Stage Method for LTE MIMO User Equipment Performance Evaluation , 2014, IEEE Transactions on Electromagnetic Compatibility.

[24]  Jun Fan,et al.  A planar low-profile meander antenna design for wireless terminal achieving low self-interference , 2015, 2015 IEEE Symposium on Electromagnetic Compatibility and Signal Integrity.

[25]  Ji Chen,et al.  An effective receiver sensitivity measurement , 2015, 2015 IEEE Symposium on Electromagnetic Compatibility and Signal Integrity.

[26]  Jun Fan,et al.  Fast and Accurate TIS Testing Method for Wireless User Equipment With RSS Reporting , 2016, IEEE Transactions on Electromagnetic Compatibility.