Traveling wave lte antenna for dual band and beam control

An antenna structure comprising:

• a vehicle window;
• a thin film substrate adhered to the vehicle window by an adhesive layer;
• and
• a leaky-wave co-planar waveguide (CPW) antenna formed to the vehicle window opposite to the adhesive layer, said antenna including a ground plane having opposing first and second ground lines defining a gap therebetween and an antenna radiating element extending between the ground lines in the gap, said antenna radiating element including a plurality of leaky-wave bus bars crossing the antenna radiating element at predetermined intervals and operating to cause radiation to be directed therefrom to change a radiation pattern of the antenna to be horizontal to the ground, wherein the antenna structure provides signals for a multiple-input multiple output (MIMO) long term evolution (LTE) cellular system.

An antenna structure operating in a frequency band in the range of 0.7-1.2 GHz or 1.8-2.4 GHz, said antenna structure comprising:

• a dielectric structure;
• a thin film substrate adhered to the dielectric structure by an adhesive layer;
• a leaky-wave co-planar waveguide (CPW) antenna formed to the substrate opposite to the adhesive layer, said antenna including a ground plane having opposing first and second ground lines defining a gap therebetween and an antenna radiating element extending between the ground lines in the gap, said ground plane including a base portion from which the first and second ground lines extend and including a slot in communication with the gap, said antenna radiating element including a feed line portion positioned within the slot and a plurality of leaky-wave bus bars crossing the antenna radiating element at predetermined intervals and operating to cause radiation to be directed therefrom to change a radiation pattern of the antenna;
• and
• a CPW feed structure that includes the base portion and the feed line portion.