Electrical Components
 

Film Antenna

Features
  • Highly adhesive to glass panes
  • Highly transparent
  • Electrical circuits of arbitrary shape can be formed on a thin PET film
  • Possible to achieve low-resistance electrical circuits
  • Available in a wide variety of designs
  • High flexibility and adhesion to curved surfaces
  • No discoloration when exposed to sunlight
Applications
  • Diversity antennas mounted on window glass
    ⇒For FM-VICS, ATV, DTV (one-or full-segment), and GPS
  • RF-ID tag antennas
  • Electrostatic sensors
Specifications
Structure
Film Antenna Structure
Materials
Material Thickness
Film PET 25 to 188μm
Circuit Ag 10μm
Circuit protection Clear resist 10μm

Characteristics
Test item Test content Value
Adhesion Peel strength from glass panes 20N/25mm or higher
Circuit resistance Electrical resistance of a conductor 1mm in width and 100mm in length 2Ω or less
Total light transmission Measured with film antenna attached to slide glass About 90%*
Environmental resistance Weather resistance Kept in a sunshine weather meter for 300 hours. No discoloration
Kept in a UV carbon fade meter for 400 hours. No discoloration
Heat resistance test 80°C No dimensional change
No discoloration
Rate of change in electrical resistance: 10% or less
Heat and humidity resistance test 50°C×95%RH
Heat and humidity cycle test From -30°C to 80°C, and then to 50°C at 90%RH

* Note: Total light transmission depends on the thickness of the PET film.

Film Antenna