Microwave Tailored Force Fields
 
 

The results indicate that high microwave intensity would be required to move particles. It is a good rule of thumb that intensities achievable inside resonators can reach 3 orders of magnitude higher than source beam intensity. Microwave beam intensities up to 8MW/m^2 have been demonstrated in ground-based laboratory experiments (Beauvais, 1997) - thus we may expect to achieve microwave resonator intensity in space experiments of 8GW/m^2.

Research on microwave antennae and receivers has advanced a great deal due to their importance in the defence and transportation industries. Concepts for Space solar power satellites also envisage converting solar energy to microwaves, in order to beam energy down to Earth. Beam shaping for such applications is a subject of current research. The recommended frequency of microwaves for this application is 2.45 GHz. (see Nagatomo 1995)
 
 

References

M Nagatomo, 1995, "An Approach to Develop Space Solar Power as a New Energy System for Developing Countries", Solar Energy, Vol. 56, No 1, pp 111-118. Also downloadable from http://www.spacefuture.com/archive/an_approach_to_develop_space_solar_power_as_a_new_energy_system_for_developing_countries.shtml

Beauvais, P-Y., Ausset, P., Bogard, D., Delferriere, O., Faure, J., Ferdinand, R., France, R., Gobin, R., Gros, P., Lagniel, J-M., Leroy, P-A., "First Beam of the CEA-SACLAY CW High-Intensity Microwave Source". epaper.kek.jp/pac97/papers/pdf/6W009.PDF, 1997

Shaposhnikov, S.S., "Wireless Power Transmission Antennas Peculiarities for the Space Power Systems". In Laubscher, B.E., et al, (Ed). "Space 2002/Robotics 2002" ASCE, March 2002, pp.262-268. Tsander, K., "Light-pushed sails". "From A Scientific Heritage", NASATFF-541, 1967, (quoting 1924 report).

P Q Collins and R Tomkins, 1991, " A method for utilities to assess the SPS commercially", Proc. SPS'91 pp.132-141, SEE (1991)

P F Glaser, " Power from the Sun: Its Future", Science Magazine 162, 857-866(1968)

M Hashimoto, 1991, " New Earth 21 Action Program", Presented at SPS '91 (in English), Original article by a MITI office in Tsu-San Journal, November 1990, pp.22-25 (in Japanese)

F A Koomanoff and C E Bloomquist, 1993, " Solar Power Satellites [1]", pp.26-59. Horwood London

K Kuriki, M Nagatomo and T Obayashi, 1985, " Space Energetics and Environment Laboratory (SEEL)", Space Solar Power Rev. 5, 197-205

M Nagatomo, S Sasaki and Y Naruo, 1994, "Conceptual study of a solar power satellite, SPS 2000", Proc. 19th ISTS, Yokohama, pp 469-476, Agne

G Pignolet, 1995, " Design of a low-power rectenna for a low-cost SPS-2000/WPT demonstration model", ISAS Note No.573, Institute of Space and Astronautical Science