Abstract: An antenna system includes an antenna element having two antenna feeds and a shared connection to a ground plane. A first antenna portion has a first resonant frequency length of at least one first wavelength formed from a first feed together with the shared ground connection. A second antenna portion has a second resonant frequency length formed from a second feed together with the shared ground connection. First and second slots are respectively positioned between the shared ground connection and the respective first and second feeds such that the slots create inductances. At least a portion of the ground plane is located directly beneath at least a portion of the first and second slots. The first and second slot inductances together with the ground plane capacitances form one or more filter components to isolate the first and second resonant frequencies in the antenna element.

Abstract: An antenna system includes an antenna element having two antenna feeds and a shared connection to a ground plane. A first antenna portion has a first resonant frequency length of at least one first wavelength formed from a first feed together with the shared ground connection. A second antenna portion has a second resonant frequency length formed from a second feed together with the shared ground connection. First and second slots are respectively positioned between the shared ground connection and the respective first and second feeds such that the slots create inductances. At least a portion of the ground plane is located directly beneath at least a portion of the first and second slots. The first and second slot inductances together with the ground plane capacitances form one or more filter components to isolate the first and second resonant frequencies in the antenna element.

Abstract: A lighting control system and an LED lamp for use with the lighting control system are provided. In one embodiment, the LED lamp includes a color LED including a red LED, a green LED, and a blue LED, and a lamp contact having a first contact section, a second contact section, and a third contact section, each of the first contact section, the second contact section, and the third contact section including a positive contact and a negative contact, wherein the first contact section is electrically connected to the red LED, the second contact section is electrically connected to the green LED, and the third contact section is electrically connected to the blue LED. The lighting control system may include an LED driver unit configured to provide independent electrical connection with each of the contact sections of the LED lamp.

Abstract: A system for sensing motion and performing wireless communication, includes one or more antennas for transmitting and receiving wireless data communication signals and motion detection electromagnetic waves. One or more electrical switches switch among electrical paths activating frequency channel scanning, motion sensing, interference detection, and data communication. A motion sensor receiver receives motion detection electromagnetic waves. A transceiver generates both modulated RF signals for the wireless data communication and un-modulated RF signals for the motion detection. One or more processors process motion detection electromagnetic wave data and detected interference signal data as well as processing wireless communication data to and from the transceiver, controlling the one or more electrical switches, and providing commands to the transceiver.

Abstract: A lighting control system and an LED lamp for use with the lighting control system are provided. In one embodiment, the LED lamp includes a color LED including a red LED, a green LED, and a blue LED, and a lamp contact having a first contact section, a second contact section, and a third contact section, each of the first contact section, the second contact section, and the third contact section including a positive contact and a negative contact, wherein the first contact section is electrically connected to the red LED, the second contact section is electrically connected to the green LED, and the third contact section is electrically connected to the blue LED. The lighting control system may include an LED driver unit configured to provide independent electrical connection with each of the contact sections of the LED lamp.