Planar antenna

Abstract

Abstract The flat antenna consists of a substrate (1). The latter carries an electrically conductive pattern having spots (11) and a slot pattern (2) whose slots (21) are aligned to the spots (11), and a distribution network (22) which pattern and network are arranged in each case on one side of a foam material layer (23). A reflector (3) consists of a metal plate. Located between the distribution network (22) and the metal plate (3) is a second foam material layer (24). The outer surface of the antenna, which is formed by the substrate surface (1) consisting of glass, can easily be cleaned. As a result of the use of glass and foam material, such an antenna can be produced cost-effectively. The various patterns (11, 2, 22) can be formed by screen printing or by vapour deposition. In such an antenna, the propagation characteristic can be constructed in any desired manner. <IMAGE>

Inventors

• 👤 Richard C. Hall
• 👤 John R. Sanford
• 👤 Kuno Wettstein
• 👤 Jean-Francois Zürcher

Bibliographic Details