Ultra-broadband antenna and terminal
An antenna and terminal technology, applied in antennas, resonant antennas, antenna components, etc., can solve the problems of increased demand for parasitic structure space, narrow coverage, etc., and achieve the goals of reducing the use of space, good impedance matching, and optimizing ultra-wideband operating characteristics Effect
Active Publication Date: 2012-03-28
ZTE CORP
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Problems solved by technology
However, with the increase of mobile communication modes, the expansion of mobile terminal frequency bands, and the development of data services, the above-mentioned methods have serious bottlenecks. Not only the bandwidth coverage is narrow, but the space requirements of the parasitic structure are further increased. Realized on ultra-thin and ultra-thin mobile terminals
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[0036] The basic idea of the invention is: the gradient arm and the coplanar waveguide feeder transmit the current of the radio frequency excitation port to the main radiating annular monopole, and the main radiating annular monopole forms a coupling with the main coupling patch; at the same time, the main radiating annular monopole forms a coupling; The monopole transmits current to the secondary radiation ring monopole through the metal via hole, and the secondary radiation monopole forms a coupling with the secondary coupling patch.
[0037] The present invention will be described in detail below through specific embodiments and accompanying drawings.
[0038] An ultra-wideband antenna such as figure 1 and figure 2 As shown, the device includes: a main radiating annular monopole 13, a main coupling patch 14, a gradient arm 12, a coplanar waveguide feed line 11, a secondary radiating annular monopole 15, and a secondary coupling patch 16; figure 2 for the top view.
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The invention discloses an ultra-broadband antenna. The ultra-broadband antenna comprises a coplanar wave guide feeder, a graded supporting arm, a main radiation annular monopole, a main coupling patch, a secondary radiation annular monopole and a secondary coupling patch, wherein one end of the coplanar wave guide feeder is connected with a radio frequency excitation port of a PCB (Printed Circuit Board) base plate, and the other end of the coplanar wave guide feeder is connected with the graded supporting arm; one end of the graded supporting arm is connected with the coplanar wave guide feeder and the other end of the graded supporting arm is connected with the main radiation annular monopole; the main radiation annular monopole is connected with the graded supporting arm; the main coupling patch is located at the center of the main radiation annular monopole; the secondary radiation annular monopole is connected with the main radiation annular monopole through a metal through hole; and the secondary coupling patch is located at the center the secondary radiation annular monopole. The invention further discloses an ultra-broadband terminal. With the antenna and the terminal, provided by the invention, the use space is reduced, the terminal is easy to be ultra-thin and a frequency band is widened, therefore, the terminal works in an ultra-thin broadband range.
Description
technical field [0001] The present invention relates to the field of antennas, in particular to an ultra-wideband antenna and a terminal. Background technique [0002] With the development of the world economy, mobile communications are evolving from the third generation to the fourth generation, and the demand for multi-mode, multi-band and multi-system mobile terminals is becoming stronger and stronger, such as world-mode mobile phones, data cards, etc. How to realize the omnidirectional operation covering 0.8GHz-5.5GHz ultra-wideband in the front-end part of the antenna of the terminal in a compact space, so as to save the space and cost of the mobile terminal, which is conducive to the miniaturization and ultra-thin development of the mobile terminal. The design of the antenna has a great challenge. [0003] At present, the widening antenna frequency band technology is mainly limited to the improvement of antenna forms such as Planar Inverted-F Antenna (PIFA), Inverted-...
Claims
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IPC IPC(8): H01Q1/38H01Q1/22H01Q5/25H01Q5/378
CPCH01Q1/22H01Q5/0062H01Q1/38H01Q1/243H01Q9/42H01Q9/40H01Q5/25H01Q5/378
Inventor 陈亚军程守刚沈俊秦宇
Owner ZTE CORP