Investigation for impact behavior of composite surface antenna
We study the impact characteristic and the performance of composite surface antenna (CSA). The antenna, which operates in GPS band (1.575 GHz) and DMB band (2.635 GHz), was embedded in composite sandwich structure consisting of glass/epoxy laminate, carbon/epoxy laminate, adhesive films and nomex honeycomb. When 20 J of impact energy was applied to arbitrary points on the antenna, the maximum contact force was 4 kN and the antenna proved resistant to impact. The gain of antennas after impact testing was about 6 dBi in GPS band and 4.5 dBi in DBS band.
Combined multi-band antenna for GPS and WLAN applications
Linear and circular polarisations are ofen used respectively for terrestrial and spatial communications. In this paper, we propose a new complex multi-band antenna working simultaneously in linear and circular polarisations for WLAN, GPS1 and GPS2 standards. This antenna is a combination of stacked patches, printed on ceramic substrates, with a metallic monopolar type structure within a metallic cavity placed in the center of the previous patches.
Judicial politics in Britain: Patrolling the boundaries
This study considers judicial policy‐making in Great Britain by noting the peculiarly British institutional restraints on judicial action of parliamentary sovereignty, the resulting subordination of all courts to the legislative branch and the absence of a codified charter of rights or constitution. Though there is no judicial power to annul legislative or executive actions, British courts and judges still play a small, but significant, role in policy‐making through the common law and, in particular, through judicial review of adminstrative actions. A written bill of rights would likely draw courts further into the the political arena and politicise the appointment of judges.