My client, Nearson has the answer:
NEARSON RELEASES HIGHEST GAIN PORTABLE ANTENNA AVAILABLE.
Now there is a solution to the poor signal quality of wireless networks that is as economical as it is flexible, the Nearson 7-dBi high gain rubber duck antenna. Blind spots and patchy signals can be replaced by high quality reception without the cost or power consumption of high-powered radios.
The Nearson 7-dBi antenna brings the performance of an infrastructure antenna to a portable antenna that is small, lightweight and very cost-effective. It attaches directly to standard connectors found on industrial radios or 802.11 b&g Access Points. Range of reception in many environments is effectively tripled, reducing the need for extra Access Points, amplifiers or repeaters, thereby saving both the cost of installation and its associated aggravation. Link quality is improved, reducing packet loss and increasing effective throughput.
Nearson's 7-dBi antennas are 11 inches tall, thin, flexible and articulating. They come with industry standard SMA & TNC connectors as well as Reverse Polarity versions for FCC Part 15 compliance. There are models available with flying leads (a Nearson innovation in 1999) for OEM adoption with U.FL compatible and MMCX connectors. These flying lead models eliminate costly patch cables and offer a variety of methods to attach to an OEM's enclosure. The 7-dBi antennas are available immediately for volume production.