Memorial Tributes Volume 25 (2023) / Chapter Skim
Currently Skimming:
C. CHAPIN CUTLER
C. CHAPIN CUTLER
Pages 66-77
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From page 67... ...
His inventions in radio, radar, signal coding, imaging, and satellite communications earned him more than 80 patents, numerous awards, and a worldwide reputation. He was an enthusiastic collaborator, and remained humble throughout.
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From page 68... ...
Shortly after, his father took him to a popular talk, "The Wonders of Radio and Communication," by a visiting scientist from the newly established Bell Telephone Laboratories. The speaker modulated a neon bulb, talked over a light beam, and demonstrated inverted speech.
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From page 69... ...
He applied for employment at Bell Telephone Laboratories, but jobs were scarce in 1937 -- the economy had not quite recovered from the Depression, and the laboratories, to reduce costs, were open only four days a week. There were no openings in the research departments in New York City, but Cutler was offered a position at a branch laboratory in Deal, New Jersey, where research and development centered on shortwave radio, high-power transmitter tubes, new antenna designs, and ionospheric
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From page 70... ...
Assigned to design a high-power transmitter at 23 MHz using 25 kW experimental tubes, they used a feedback amplifier configured as the transmitter stage. Cutler called his first invention the "self-neutralized amplifier" because it balanced the internal tube capacitances, plate to cathode and grid to plate, against each other to prevent capacitive feedback.
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From page 71... ...
Overnight Cutler became known as a radar expert and was consulted on various antenna designs. In the meantime he invented a variety of antenna feeds, including the corrugated waveguide, later used in microwave devices.
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From page 72... ...
Cutler and Quate set up an experiment to verify Pierce's theory. They projected an electron beam through the center of a toroidal resonant cavity in the newly designed pumping station; the cavity moved along the beam.
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From page 73... ...
Their frequent meetings paved the way for the Telstar experiment,3 soon followed by Project Echo. Early in 1958 NASA was planning to orbit a 100-foot- diameter aluminized Mylar balloon to measure the density of the atmosphere in near space, and the agency was receptive to a passive communication experiment in space using the balloon for the reflector.
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From page 74... ...
By mid-1960 they had a commercial 60-foot-diameter paraboloidal transmitting antenna, a novel 20-foot horn reflector receiving antenna, and a 10 kW Varian Klystron tube for the transmitter for each ground station. The newly invented maser was used for the first time as the low-noise amplifier.
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From page 75... ...
Goddard Alumni Award for Outstanding Personal Achievement in 1982. Cutler greatly enjoyed physical activity, was a Boy Scout leader, and loved taking his children on adventures, teaching 5 Bond WL, Cutler CC, Lemons RA, Quate CF.
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From page 76... ...
Bruce Wooley made Cutler's files at Stanford University available. Gary Boyd and Susan Feyerabend helped to locate Cutler's old papers left in the lab.
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