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. 25, 2016
Filed:
Feb. 09, 2014
Deepu Vasudevan Nair, Thiruvananthapuram, IN;
Varun Ramchandani, Kota, IN;
Partha Sarathy Murali, San Jose, CA (US);
Suresh Kumar Vagvala, Hyderabad, IN;
Deepu Vasudevan Nair, Thiruvananthapuram, IN;
Varun Ramchandani, Kota, IN;
Partha Sarathy Murali, San Jose, CA (US);
Suresh Kumar Vagvala, Hyderabad, IN;
Redpine Signals, Inc., San Jose, CA (US);
Abstract
A printed circuit tri-band antenna has a feedline region and a radiating structure region which provides RF emissions in a lowband (LB) RF frequency, a lower highband (HB-L) frequency, and a upper highband (HB-U) frequency. The feedline region is formed of conductors on an upper plane, the conductors including a feedline which is edge coupled to left and right ground structures. The feedline couples directly to a HB-U radiating structure, and includes a stub. The HB-U structure and stub also provide edge coupling through a gap for coupling RF into a combined HB-L and LB radiation structure, which provides frequency-dependent paths for radiating RF energy at the HB-L and LB frequencies. The antenna is preferably used with 2.35 Ghz LB, 5.07 GHz HB-L, and 5.57 Ghz HB-H.