Antenna and radio device comprising the same

• US 6,661,391 B2
• Filed: 05/01/2002
• Issued: 12/09/2003
• Est. Priority Date: 06/09/2000
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Ohara, Masahiro, Fukumura, Toyoshi
• Primary Examiner(s): Ho, Tan
• Application Number:
  US10/048,062
• Publication Number:
  US 20020149537A1
• Time in Patent Office: 587 Days
• Field of Search: 343/895, 343/872, 343/702, 343/853, 296/00
• US Class Current: 343/895
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 1/362 for broadside radiating helical antennas
• CPC Class Codes: H01Q 1/40 Radiating elements coated with or embedded in protective material
• CPC Class Codes: H01Q 5/00 Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements combinations of separate active antenna units operating in different wavebands and connected to a common feeder system H01Q21/30
• CPC Class Codes: H01Q 5/357 using a single feed point

Claims