Abstract: A portable electronic device (50)that ergonomically attaches to an external article (64)includes a housing (52) for containing the portable electronic device and an ergonomic attachment device (51) for attaching the portable electronic device to the external article. The ergonomic attachment device includes a first portion (54) coupled to a contact portion (52) on the portable electronic device, wherein the first portion has a first end (58) and a second end (60) and a second portion (56) having a first end hinged to the first end of the first portion and a second end (62) that clasps with the second end of the first portion, wherein the first portion and the second portion form a button holder that can ergonomically mount upon a button on the external article.

Abstract: A multiple-frequency stacked microstrip patch antenna structure is disclosed which provides substantially increased isolation between the multiple radiating elements and between the multiple feed elements. In one embodiment of the present invention having two radiating elements, such isolation is afforded by disposing shielding around a portion of the feed pin connected to the upper radiating element by electrically connecting the reference surface with the lower radiating element. Additional isolation and improved response characteristics can be provided by employing a tuning network for each radiating element. Additionally, two or more sets of stacked radiating elements can be arranged in an array to provide increased gain or directivity capabilities.