Kiyo Tomiyasu was born in 1919 in Nevada and obtained his bachelor's and master's degrees from Caltech and PhD from Harvard. He made pioneering contributions to the field of lasers and microwave technology at GE. He authored over 100 publications and reference works, founded GE's laser group, and received numerous honors over his illustrious career. Even in retirement, he remained active in engineering societies, education, and philanthropy through his support of students and awards.

1. Many Happy Returns:
Many Happy Returns:
Reflections Inspired
Reflections Inspired
by
by
Kiyo Tomiyasu
Kiyo Tomiyasu
R. Keith Raney
IGARSS, Honolulu, Hawai’i
Wednesday 28 July 2010

2. Kiyo Tomiyasu, born in Las Vegas, Nevada, September 1919
1919 Pierce Arrow

3. California Institute of Technology,
Kiyo: “I was a scared rabbit…”
Bachelor of Science, 1940

4. Earthquake
seismometer ?
California Institute of Technology,
Kiyo: “I was a scared rabbit…”
Bachelor of Science, 1940

5. Columbia, MS Eng,
1941

6. Columbia, MS Eng,
1941
Harvard University,
PhD, 1942-1948

7. Columbia, MS Eng,
1941
Harvard University,
PhD, 1942-1948
Easter, 1946…

8. Columbia, MS Eng,
1941
Harvard University,
PhD, 1942-1948
Easter, 1946…
Married Eiko, 1947

9. Columbia, MS Eng,
1941
Harvard University,
PhD, 1942-1948
Easter, 1946…
Computer
Married Eiko, 1947
Laboratory
30 m

10. Harvard’s Mark I computer (IBM ASCC), 1944
Howard H. Aiken (and Grace Hopper)
Effective clock speed: 3 Hz !!

11. Dr. Kiyo Tomiyasu
Recipient of Numerous Awards and Honors, including
President MTT-S (1960-61)
Japanese American Citizen’s League Silver Medallion (1962)
IEEE Fellow (1962), Life Fellow (1985)
Director, IEEE Board of Directors (1985 – 86)
Honorary Life AdCom Member: MTT-S (1973), GRSS (1999)
General Electric Charles Proteus Steinmetz Award (1977)
MTT-S Microwave Career Award, (1980)
IEEE Centennial Medal (1984)
Annual Prize, Telecommunications Association of Japan (1986)
Outstanding Service Award, GRSS (1986)
Distinguished Service Award, MTT-S (1987)
California Institute of Technology Distinguished Alumni Award (2002)
IEEE Heritage Circle, Thomas Alva Edison Medal (2010)

12. Dr. Kiyo Tomiyasu
Recipient of Numerous Awards and Honors, including
President MTT-S (1960-61)
Japanese American Citizen’s League Silver Medallion (1962)
IEEE Fellow (1962), Life Fellow (1985)
Director, IEEE Board of Directors (1985 – 86)
Honorary Life AdCom Member: MTT-S (1973), GRSS (1999)
General Electric Charles Proteus Steinmetz Award (1977)
MTT-S Microwave Career Award, (1980)
IEEE Centennial Medal (1984)
Annual Prize, Telecommunications Association of Japan (1986)
Outstanding Service Award, GRSS (1986)
Distinguished Service Award, MTT-S (1987)
California Institute of Technology Distinguished Alumni Award (2002)
IEEE Heritage Circle, Thomas Alva Edison Medal (2010)
Initiator of Awards and Philanthropy, including
Annual Scholarships (with Eiko) at Cal Tech (1977 - )
IEEE Foundation Fund: Harold Sobol Student Grant (MTT-S)
IEEE Foundation Fund: Mike Takagi Student Prize (GRSS)
Cal Tech Kiyo and Eiko Tomiyasu Endowed Professorship
IEEE Kiyo Tomiyasu Technical Field Award (2002 - )

13. Dr. Kiyo Tomiyasu
Recipient of Numerous Awards and Honors, including
President MTT-S (1960-61)
Japanese American Citizen’s League Silver Medallion (1962)
IEEE Fellow (1962), Life Fellow (1985)
Director, IEEE Board of Directors (1985 – 86)
Honorary Life AdCom Member: MTT-S (1973), GRSS (1999)
General Electric Charles Proteus Steinmetz Award (1977)
MTT-S Microwave Career Award, (1980)
IEEE Centennial Medal (1984)
Annual Prize, Telecommunications Association of Japan (1986)
Outstanding Service Award, GRSS (1986)
Distinguished Service Award, MTT-S (1987)
California Institute of Technology Distinguished Alumni Award (2002)
IEEE Heritage Circle, Thomas Alva Edison Medal (2010)
Initiator of Awards and Philanthropy, including
Annual Scholarships (with Eiko) at Cal Tech (1977 - )
IEEE Foundation Fund: Harold Sobol Student Grant (MTT-S)
IEEE Foundation Fund: Mike Takagi Student Prize (GRSS)
Cal Tech Kiyo and Eiko Tomiyasu Endowed Professorship
IEEE Kiyo Tomiyasu Technical Field Award (2002 - )

14. While still quite young, Kiyo founded
and was the leader of the GE Laser
Group (1961-1967)

15. Note
logarithmic
scale !!!
Laser Papers Published by Year
10000
1000 Townes,
Number of papers
Schawlow;
Gould
100
10
1
1957 1958 1959 1960 1961 1962 1963 1964 1965 1966
Year

16. Laser Papers Published by Year
10000
1000 Ruby laser
Number of papers
(Maiman)
Kiyo’s
100 inspiration
10
1
1957 1958 1959 1960 1961 1962 1963 1964 1965 1966
Year

17. Laser Papers Published by Year
10000
1000
Kiyo: 5 reference
Number of papers
collections, IEEE
100
J. of Quantum
Electronics
10
1
1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967
Year Kiyo’s laser leadership at GE

18. 3990 references,
organized into 27
subject groups, Plenum Press,
annotated 1968

19. A profitable
enterprise ?
3990 references,
organized into 27
subject groups, Plenum Press,
annotated 1968

20. Banyan tree in Ft. Myers, Florida
(Planted by T. A. Edison)

21. K Tomiyasu,
“Germinating Tropical
Seeds,”
Fruit Gardener, 1978
(4), p. 7

22. In Cambodia…

23. Banyan Bonsai
Kiyo’s little-known hobby
for nearly 30 years

24. For most of us it is a struggle to generate good ideas….

25. rs
a pe
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te nt
Pa
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:2
Kiyo

26. Awarded in 1977

27. Charles P Steinmetz
1865 – 1923
Consulting engineer
to GE
“Father of AC”
X marks the spot Awarded in 1977

35. Kiyo Tomiy
a su, Guest E
ditor

36. Kiyo Tomiy
a su, Guest E
ditor

37. 981
PRIL 1
O. 2, A
OL .G E-19, N
SING, V
O TE SEN
D REM
CE AN
O SCIEN
ONS O N GE
CTI
RANSA
IEEE T
Kiyo Tomiy
a su, Guest E
ditor

38. Ambiguity Space Trade-offs
Doppler BW (Hz) BDop Avoid ambiguities rule: BDop TR < 1 (underspread)
Range window (sec) TR
Antenna beamwidth (rad) β
Radar range (m) R
Footprint velocity (m/s) V
Antenna aperture (m) D
Azimuth resolution (m) rAz
Synthetic aperture time (s) TA
StripSAR

39. Ambiguity Space Trade-offs
Doppler BW (Hz) BDop Avoid ambiguities rule: BDop TR < 1 (underspread)
Range window (sec) TR Time-Bandwidth product rule*:
Antenna beamwidth (rad) β βf
ffRfff
ffffff
ffffff
r Az =
Radar range (m) R T A B Dop
Footprint velocity (m/s) V
Antenna aperture (m) D
Azimuth resolution (m) rAz
Synthetic aperture time (s) TA
StripSAR ScanSAR**
Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976**, ,1981),
Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976** 1981),
and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)
and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)

40. Ambiguity Space Trade-offs
Doppler BW (Hz) BDop Avoid ambiguities rule: BDop TR < 1 (underspread)
Range window (sec) TR Time-Bandwidth product rule*:
Antenna beamwidth (rad) β βf
ffRfff
ffffff
ffffff
r Az =
Radar range (m) R T A B Dop
Footprint velocity (m/s) V Now substitute for BDop to get a new fundamental
Antenna aperture (m) D azimuth resolution vs coverage rule:
Azimuth resolution (m) rAz
Tffβff
f R
fR f fff
f f ff
<1
T A r Az
Synthetic aperture time (s) TA
StripSAR SpotSAR ScanSAR**
βfff
R
fff
ff Tfff
fff
ff
TA T 0A = n T 0A 0A
AND n T R
V n
Df
ff
ff rfff
fff
ff
r Az r 0Az t
0Az n r 0Az
2 n
Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976**, ,1981),
Harger (1970); Bucknam (1975*); Claassen (1975), Moore (1976** 1981),
and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)
and Lin (1979); Tomiyasu (1979, 1980, 1981); Luscombe (1988)

41. RADARSAT-1 Antenna
Slotted waveguide antenna
15-m width (azimuth)
1.5-m height (elevation)
32 horizontal WGs
Each WG center-fed
Azimuth Elevation
Phase and amplitude control
Selectable elevation (range)
directivity and beamshape

44. X

45. …and you have always
maintained perspective, while
being energetic, original,
gentle, and generous

46. Thank You !