Re:NEC-LIST: Simulations of Q and the Chu-Harrington Limits

Just a point of nomenclature before this discussion goes too far. We
should be referring to the "Chu"-Harrington limits, not Chiu as may
soon become the norm. The original work in this field was published by
L J Chu in 1948: "Physical Limitations of omnidirectional antennas",
J.Appl.Phys., vol.19, p 1163.

By the way, there is an interesting table (Table 4) on p 6-24 of Lo
and Lee's "Antenna Handbook" (van Nostrand) 1988 which compares
bandwidth and "volume" of a number of antenna configurations. It is
based on the work of Desantis (1977) which is not readily available.

Brian Austin.

_______________________________________________
Dr B A Austin
Department of Electrical Engineering & Electronics
University of Liverpool
Brownlow Hill
Liverpool L69 3GJ
United Kingdom

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