The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2018
Filed:
Jul. 07, 2015
The United States of America As Represented BY the Secretary of the Navy, Washington, DC (US);
Jia-Chi Samuel Chieh, San Diego, CA (US);
Lu Xu, San Diego, CA (US);
Albert Ryu, Fremont, CA (US);
John D. Rockway, San Diego, CA (US);
Diana Arceo, San Diego, CA (US);
Justin A. Church, San Diego, CA (US);
The United States of America as represented by Secretary of the Navy, Washington, DC (US);
Abstract
An antenna comprising: a driven element; an input feed coupled to the driven element wherein the input feed is configured to be connected to a receiver; a non-Foster circuit having a negative impedance, wherein the non-Foster circuit is configured to actively load the antenna at a location on the antenna other than at the input feed; and wherein the antenna fits within an imaginary sphere having a radius a, and wherein the product ka is less than 0.5, where k is a wave number.