Zero-thickness wideband antennas for small radio transceivers

Abstract

The paper presents investigations into compact zerothickness wideband antennas capable of operating in many frequency bands within 800-3000MHz. Multiband operation of these antennas is accomplished by suitable meandering of conducting segments that may be supported by a thin dielectric film. The antennas are capable of operating with a very small ground plane formed by an adjacent conducting surface or a feeding transmission line. Because of the use of flexible materials, these antennas can be conformed to planar or cylindrical structures. Their operation is tested experimentally in stand-alone configurations as well as in the presence of enclosures.

Foldeable wideband small antenna element

“…The straightforward suppression of the element thickness to zero leads to the concept of a paper-thin antenna. The antenna presented in this paper is called MAL50 and its basic geometry is illustrated in Figure 1 [4]. The MAL50 antenna can be manufactured on a broad range of substrates and on thin metal sheets cut with a laser cutter or with less sophisticated cutting tools.…”

Compact Planar Multiband Antennas for Mobile Applications

“…To ease the design challenge, tuning and optimization is usually accomplished with the use of commercial full EM wave simulators such as CST Microwave Studio or Ansoft HFSS. For a typical portable device, such as a cellular phone, the height (thickness) of the primary radiator from 11 mm is reduced down to 7 mm [30]. However with the recent demand for slimmer transceivers, an even smaller height is required and can be as little as just 3 mm.…”

Design of a printed quarter-elliptical wide-band antenna for portable devices

“…The structure must also be compatible with the device's physical layout. For example, a thin laptop may require a planar or zero-thickness antenna design [1] with a specific type of coaxial or planar feed.…”