Single layer antenna
An antenna is disclosed that includes a ground plane extending in a first direction on a substrate and a radiating element occupying a same plane as the ground plane on the substrate, and coupled to the ground plane, the radiating element comprising a first portion with a first end and a second end extending in a substantially parallel direction to the ground plane, a feed line coupled to the first end of the first portion of the radiating element and extending in a substantially perpendicular direction from the first portion of the radiating element and a second portion having a third end and a fourth end, wherein the third end is coupled to the ground plane and the fourth end is coupled to the radiating element at a point between the first end and the second end.
1. A device comprising:
a ground plane extending in a horizontal direction on a substrate; and
an inverted F antenna occupying a same plane as the ground plane on the substrate, and coupled to the ground plane, the inverted F antenna comprising:
a horizontal radiating element with a first end and a second end extending in a parallel direction to the ground plane;
a feed line directly connected to the first end of the radiating element and extending in a perpendicular direction from the first end of the radiating element;
a slanted grounding element having a third end and a fourth end, wherein the third end is connected to the ground plane at a 90-degree angle using a first extending portion and the fourth end is connected to the radiating element at a 90-degree angle using a second extending portion at a point between the first end and the second end; and
a transmitter integrated circuit coupled to the feed line through a filter network by an electrical feeder path, said feeder path including two conductive traces;
said transmitter integrated circuit occupies space on the ground plane on a same side of the electrical feeder path, such that the electrical feeder path does not cause any parasitic coupling between the transmitter integrated circuit and the radiating element;
wherein the inverted F antenna is a single layer antenna.
2. The device of claim 1 , wherein the slanted grounding element is coupled to the radiating element at a 90 degree angle.
3. The device of claim 1 , wherein the slanted grounding element is coupled to the ground plane at a 90 degree angle.
4. The device of claim 1 , further comprising a slot antenna formed by a perimeter of an area enclosed by the radiating element, the feed line, the ground plane, and the slanted grounding element.
5. The device of claim 4 , wherein the slot antenna is configured to operate at one quarter of a wavelength of a frequency of the inverted F antenna.
6. The device of claim 1 , wherein the radiating element is of a length equal to a rational number times a wavelength of the inverted F antenna.
7. The device of claim 1 , wherein the slanted grounding element is coupled to the radiating element at a 90 degree angle and the slanted grounding element is coupled to the ground plane at a 90 degree angle.
8. A printed circuit comprising:
a ground plane extending in a horizontal direction on a substrate; and
an inverted F antenna coplanar with the ground plane on the substrate, and coupled to the ground plane, the inverted F antenna comprising:
a horizontal radiating element with a first end and a second end extending in a parallel direction to the ground plane;
a feed line directly connected to the first end of the radiating element and extending in a perpendicular direction from the first end of the radiating element;
a slanted grounding element having a third end and a fourth end, wherein the third end is connected to the ground plane at a 90-degree angle using a first extending portion and the fourth end is connected to the radiating element at a 90-degree angle using a second extending portion at a point between the first end and the second end; and
a transmitter integrated circuit coupled to the feed line through a filter network by an electrical feeder path, said feeder path including two conductive traces;
said transmitter integrated circuit occupies space on the ground plane on a same side of the electrical feeder path, such that the electrical feeder path does not cause any parasitic coupling between the transmitter integrated circuit and the radiating element;
wherein the inverted F antenna is a single layer antenna.
9. The printed circuit of claim 8 , wherein the slanted grounding element is coupled to the radiating element at a 90 degree angle.
10. The printed circuit of claim 8 , wherein the slanted grounding element is coupled to the ground plane at a 90 degree angle.
11. The printed circuit of claim 8 , further comprising a slot antenna formed by a perimeter of an area enclosed by the radiating element, the feed line, the ground plane, and the slanted grounding element.
12. The printed circuit of claim 11 , wherein the slot antenna is configured to operate at one quarter of a wavelength of the inverted F antenna.
13. The printed circuit of claim 8 , wherein the radiating element is of a length equal to a rational number times a wavelength of the inverted F antenna.
14. The printed circuit of claim 8 , wherein the slanted grounding element is coupled to the radiating element at a 90 degree angle and the slanted grounding element is coupled to the ground plane at a 90 degree angle.
15. An apparatus comprising:
a ground plane extending in a horizontal direction on a planar substrate; and
an inverted F antenna on the substrate, and coupled to the ground plane, the inverted F antenna comprising:
a horizontal radiating element with a first end and a second end extending in a parallel direction to the ground plane;
a feed line directly connected to the first end of the radiating element and extending in a perpendicular direction from the first end of the radiating element;
a slanted grounding element having a third end and a fourth end, wherein the third end is connected to the ground plane at a 90-degree angle using a first extending portion and the fourth end is connected to the radiating element at a 90-degree angle using a second extending portion at a point between the first end and the second end; and
a transmitter integrated circuit coupled to the feed line through a filter network by an electrical feeder path, said feeder path including two conductive traces;
said transmitter integrated circuit occupies space on the ground plane on a same side of the electrical feeder path, such that the electrical feeder path does not cause any parasitic coupling between the transmitter integrated circuit and the radiating element;
wherein the inverted F antenna is a single layer antenna.
16. The apparatus of claim 15 , wherein the slanted grounding element is coupled to the radiating element at a 90 degree angle.
17. The apparatus of claim 15 , wherein the slanted grounding element is coupled to the ground plane at a 90 degree angle.
18. The apparatus of claim 15 , further comprising a slot antenna formed by a perimeter of an area enclosed by the radiating element, the feed line, the ground plane, and the slanted grounding element.
19. The apparatus of claim 18 , wherein the slot antenna is configured to operate at one quarter of a wavelength of the inverted F antenna.
20. The apparatus of claim 15 , wherein the radiating element is of a length equal to a rational number times a wavelength of the inverted F antenna.