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:
Oct. 26, 2004
Filed:
Nov. 27, 2002
Michael R. Andrews, Berkeley Heights, NJ (US);
Partha Pratim Mitra, Summit, NJ (US);
Alexander Polyakov, Brooklyn, NY (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A compact antenna and a communication unit having the same comprises one or more input feeds and one or more sets of elements. Each set of elements is coupled to one or more of the input feeds, and each set of elements has a property that input signals applied to input feeds coupled to the set of elements causes a directed beam to be emitted. At least one given element of the set or sets of elements has a largest dimension, and a smallest wavelength to be emitted from the antenna is larger than the largest dimension for the given element. The antenna is adapted to simultaneously transmit the input signals, and generally more than two input signals. When a concentration region for a directed beam is large enough, more than one degree of freedom can be contained in the concentration region. Techniques are presented for designing the compact antenna.