Title:
HALF-AND QUARTER-WAVELENGTH PRINTED SLOT ULTRA-WIDEBAND (UWB) ANTENNAS FOR MOBILE TERMINALS
Document Type and Number:
WIPO Patent Application WO2006040609
Kind Code:
A8
Abstract:
The present invention employs slot antennas to make UWB antenna (7) and a quarter-wavelength slot UWB antenna for use in mobile terminals. The slot (8) length, which is related to the lower resonant frequency, is about half (for the half-wavelength slot antenna) or quater (for the quater-wavelength slot antenna) of the wavelength, while the higher resonant frequency is related to a dimension of the tuning stub (14). By modifying the dimensions of the tuning stub (14), good impedance matching of the antenna can be achieved according to the desired operating frequency. This invention can be used for mobile terminals to transmit and receive UWB signals in the frequency range of 3.1GHz-4.9GHz.
More Like This:
| WO/2011/113389 | PLANAR ANTENNA OF WIRELESS TERMINAL AND WIRELESS TERMINAL |
| WO/2018/076681 | PRINTED DIPOLE OSCILLATOR |
| JP4904302 | Automotive antennas and compound antennas |
Inventors:
ZHAO ANPING (FI)
RAHOLA JUSSI (FI)
RAHOLA JUSSI (FI)
Application Number:
PCT/IB2004/003343
Publication Date:
January 18, 2007
Filing Date:
October 13, 2004
Export Citation:
Assignee:
NOKIA CORP (FI)
NOKIA INC (US)
ZHAO ANPING (FI)
RAHOLA JUSSI (FI)
NOKIA INC (US)
ZHAO ANPING (FI)
RAHOLA JUSSI (FI)
International Classes:
H01Q1/38; H01Q13/10
Download PDF:
Previous Patent: TREATMENT LIQUID FOR SEPARATING MULTI-LAYERED PRODUCTS
Next Patent: COOLER FOR COOLING HOT PARTICULATE MATERIAL
Next Patent: COOLER FOR COOLING HOT PARTICULATE MATERIAL