Greenleaf Whittier Pickard
Engineer, Academic
1877 – 1956
Who was Greenleaf Whittier Pickard?
Greenleaf Whittier Pickard was a United States radio pioneer. Pickard was a researcher in the early days of wireless. He was responsible for the development of the crystal detector, a radio wave detector which was the central component in early radio receivers called crystal radios, which were the most widely used radio receivers until about 1920 and continued to be used until World War 2. He also experimented with antennas, radio wave propagation, and noise suppression. On August 30, 1906 he filed a patent for a silicon crystal detector, which was granted on November 20, 1906. Pickard's detector was revolutionary in that he found that a fine pointed wire known as a "cat's whisker," in delicate contact with a mineral produced the best semiconductor effect. On June 10, 1907, he filed a patent for a Magnetic Aerial which was granted on January 21, 1908. Pickard's loop antenna had directional properties that could be used to reduce interference to the intended wireless communications. Greenleaf Whittier Pickard was named after his great-uncle, the American Quaker John Greenleaf Whittier. Pickard was president of the Institute of Radio Engineers in 1913.
We need you!
Help us build the largest biographies collection on the web!
Citation
Use the citation below to add to a bibliography:
Style:MLAChicagoAPA
"Greenleaf Whittier Pickard." Biographies.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.biographies.net/people/en/greenleaf_whittier_pickard>.
Discuss this Greenleaf Whittier Pickard biography with the community:
Report Comment
We're doing our best to make sure our content is useful, accurate and safe.
If by any chance you spot an inappropriate comment while navigating through our website please use this form to let us know, and we'll take care of it shortly.
Attachment
You need to be logged in to favorite.
Log In