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. 05, 1999
Filed:
Jul. 13, 1998
Warren Leroy Seely, Chandler, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An apparatus includes a first mixer port (12), a second mixer port (14), a third mixer port (16), a first hybrid device (20) responsive to the first mixer port (12) and having a first and a second input/output port, a second hybrid device (40)responsive to the second mixer port (14), the third mixer port (16) responsive to the second hybrid device (40), and a switching device (30). The switching device (30) includes a first port (31) responsive to the first input/output port of the first hybrid device (20), a second port (32) responsive to the second port of the first hybrid device (20),a third port (34) in communication with the second hybrid device (40), a fourth port (36) in communication with the second hybrid device (40), and a switching element responsive to the first, second, third, and fourth ports (31, 32, 36, 34). The switching element includes a first field effect transistor (60) and a second field effect transistor (62). The first field effect transistor (60) is responsive to the first port (31) and is coupled to the third port (34), and the second field effect transistor (62) is responsive to the second port (32) and is coupled to the fourth port (36).