As far as I know, these compaq cards are re-labeled lucent/
orinoco products. They use a proprietary connector mfg by lucent. The first link below is a picture of the Compaq range extender antenna....looks like a lucent antenna to me.

http://www.compaq.com/products/wireless/wlan/options.shtml

Here is a link to antennas/ pigtails for your card.



http://www.hyperlinktech.com/web/cable_adapter.html