Multi-frequency band antenna device for radio communication terminal having wide high-band bandwidth
First Claim
1. A multi-band radio antenna device for a radio communication terminal, comprising:
- an integral feed and ground structure electrically connected to a first radiating antenna element and a second radiating antenna element, said first radiating antenna element comprising a first continuous trace of conductive material, the first continuous trace having a first branch tuned to radiate at first frequencies in a first frequency band, and a second branch, which is tuned to radiate in a second frequency band at second frequencies approximately equal to or less than two times the first frequencies; and
said second radiating antenna element comprising a second continuous trace of conductive material, the second continuous trace having a third branch, which is tuned to resonate in a third frequency band at third frequencies that are higher than the second frequencies, and is capacitively coupled to the feed and ground structure and arranged substantially adjacent to the second branch;
wherein the first branch comprises a first section, composing approximately ⅓
to ⅔
of the total length of the first branch, wherein the first section is essentially straight and connected to said feed and ground structure at a first end thereof, and a second section in direct connection to a second end of said first section that is tightly meandered.
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Accused Products
Abstract
A multi-band radio antenna device for a radio communication terminal is disclosed. The antenna has an integral feed and ground structure electrically connected to a first radiating antenna element and a second radiating element. The first radiating element comprises a first continuous trace of conductive material and has a continuous trace has a first branch tuned to radiate at first frequencies in a first frequency band, and a second branch, which is tuned to radiate in a second frequency band at second frequencies approximately equal to or less than two times the first frequencies. The second radiating antenna element comprises a second continuous trace of conductive material, wherein the second continuous trace has a third branch, which is tuned to resonate in a third frequency band at third frequencies that are higher than the second frequencies, and which is capacitively coupled to the feed and ground structure and arranged substantially adjacent to the second branch. The first branch comprises a first section, composing approximately ⅓ to ⅔ of the total length of the first branch, wherein the first section is essentially straight and connected to said feed and ground structure at a first end thereof, and a second section in direct connection to a second end of said first section that is tightly meandered.
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Citations
19 Claims
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1. A multi-band radio antenna device for a radio communication terminal, comprising:
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an integral feed and ground structure electrically connected to a first radiating antenna element and a second radiating antenna element, said first radiating antenna element comprising a first continuous trace of conductive material, the first continuous trace having a first branch tuned to radiate at first frequencies in a first frequency band, and a second branch, which is tuned to radiate in a second frequency band at second frequencies approximately equal to or less than two times the first frequencies; and
said second radiating antenna element comprising a second continuous trace of conductive material, the second continuous trace having a third branch, which is tuned to resonate in a third frequency band at third frequencies that are higher than the second frequencies, and is capacitively coupled to the feed and ground structure and arranged substantially adjacent to the second branch;
wherein the first branch comprises a first section, composing approximately ⅓
to ⅔
of the total length of the first branch, wherein the first section is essentially straight and connected to said feed and ground structure at a first end thereof, anda second section in direct connection to a second end of said first section that is tightly meandered. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio communication terminal for multi-band radio communication, comprising:
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an integral feed and ground structure electrically connected to a first radiating antenna element and a second radiating antenna element, said first radiating antenna element comprising a first continuous trace of conductive material, the first continuous trace having a first branch tuned to radiate at first frequencies in a first frequency band, and a second branch, which is tuned to radiate in a second frequency band at second frequencies approximately equal to or less than two times the first frequencies; and
said second radiating antenna element comprising a second continuous trace of conductive material, the second continuous trace having a third branch, which is tuned to resonate in a third frequency band at third frequencies that are higher than the second frequencies, and is capacitively coupled to the feed and ground structure and arranged substantially adjacent to the second branch;
wherein the first branch comprises a first section, composing approximately ⅓
to ⅔
of the total length of the first branch, wherein the first section is essentially straight and connected to said feed and ground structure at a first end thereof, anda second section in direct connection to a second end of said first section that is tightly meandered. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification