US 11,742,567 B2
Method and system for controlling a modal antenna
Hamid Eslami, San Diego, CA (US); Michael Roe, San Diego, CA (US); Jatan Shah, Irvine, CA (US); Amin Shameli, Irvine, CA (US); Syed Khursheed Enam, Lake Forest, CA (US); Jesse Shih-Chieh Hsin, San Diego, CA (US); and Rozi Rofougaran, Santa Monica, CA (US)
Assigned to Kyocera AVX Components (San Diego), Inc., San Diego, CA (US)
Filed by Kyocera AVX Components (San Diego), Inc., San Diego, CA (US)
Filed on Jun. 10, 2021, as Appl. No. 17/343,847.
Application 17/343,847 is a continuation of application No. 16/456,460, filed on Jun. 28, 2019, abandoned.
Claims priority of provisional application 62/744,274, filed on Oct. 11, 2018.
Claims priority of provisional application 62/718,430, filed on Aug. 14, 2018.
Prior Publication US 2021/0296765 A1, Sep. 23, 2021
Int. Cl. H01Q 3/44 (2006.01); H04B 1/40 (2015.01); H01Q 1/36 (2006.01); H01Q 3/28 (2006.01); H01Q 5/378 (2015.01)
CPC H01Q 1/36 (2013.01) [H01Q 3/28 (2013.01); H01Q 5/378 (2015.01)] 18 Claims
OG exemplary drawing
 
18. An antenna system, comprising:
a modal antenna comprising a driven element and a parasitic element positioned proximate to the driven element, the modal antenna operable in a plurality of different modes, each mode associated with a different radiation pattern;
a tuning circuit configured to control an electrical characteristic associated with the parasitic element to operate the modal antenna in the plurality of different modes;
a radio frequency circuit;
a transmission line coupling the radio frequency circuit to the modal antenna;
wherein:
the radio frequency circuit is configured to modulate a control signal onto an RF signal using amplitude-shift keying modulation to generate a transmit signal for communication over the transmission line to the tuning circuit; and
the tuning circuit is configured to demodulate the control signal and extract clock information from the control signal to interpret the control signal such that the radio frequency circuit can adjust a mode of the modal antenna via the control signal.