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In this paper we have introduced transparent wire-grid type conductive film antenna, made of Ag-paste. The wire-grid has wire-width of only a few microns and makes the conductive film almost invisible. The antenna is designed to cover an ultra-wide band (UWB) from 2 to 6 GHz and the radiating part is made with different mesh sizes of the conductive film and ground has been taken with continuous sheet...
An invisible vehicle roof antenna for the long term evolution (LTE) application is proposed. The antenna is a bended ultra-wideband monopole with a low profile of 30 mm and covers the LTE operation bands. The antenna is embedded into a hole with a depth of 30 mm which is opened on the roof and is surrounded by metal. The antenna becomes completely invisible when the hole is covered by a dielectric...
A roof automobile antenna module for Long Term Evolution (LTE) application is proposed. The module consists of two LTE antennas for the multiple-input multiple-output (MIMO) method which requests low mutual coupling between the antennas for larger capacity. On the other hand, the installation location for a roof-top module is limited from safety or appearance viewpoint and this makes the multiple...
A flat car-roof antenna module for LTE, GPS and SDARS applications is proposed. The module consists of a planar inverted-F antenna (PIFA), a square loop one and a circular loop one, for the LTE, GPS and SDARS operations, respectively. The three antennas are located in a same plane parallel to car roof and put close to each other so that the dimension of the module is only 70 × 70 mm2 in plane. Gap...
A flat car-roof antenna module for phone and GPS applications is proposed. The module consists of a planar inverted-F antenna (PIFA) for the phone operation and a planar loop antenna for the GPS one. The two antennas are located in a same plane parallel to car roof and put close to each other so that the dimension of the module is only 50 × 80 mm2 in plane. Gap between the antenna plane and the car...
A see-through film antenna is proposed for 2.4 GHz WLAN applications. The antenna is made by a high-quality wire-grid film where very thin copper wires are used so that the antenna is almost transparent. Several kinds of wire-grids are applied and the performance is investigated experimentally and theoretically. It is found that the deterioration on radiation efficiency is limited and the transparency...
Equivalent circuit models are useful for antenna design because exact electromagnetic simulation generally needs complicated settings and heavy computation. Especially the equivalent circuit modelling with consideration of the antenna installation on devices is very helpful from practical point of view. Several antennas are modelled by equivalent circuit models with fitted parameters. A lumped circuit...
Recently, many countries are switching their terrestrial television broadcasting from analog to digital and the demand of television reception increases for mobile devices. The antenna for this purpose is required to be compact, light-weight, and operate at the broadband covering the broadcasting frequencies. In this paper, we propose a compact antenna for digital terrestrial television reception...
We have proposed a film antenna which has a planar structure with a dimension of 50 x 70 mm2 for the reception of the digital terrestrial television broadcasting. The antenna covers the frequency ranges of the ISDB-T, the ATSC's UHF band and the DVB-T's UHF band and radiates with high gain there. The antenna can be used in notebook PCs and mobile phones, etc.
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