Abstract: A bowtie monopole antenna is fabricated of a sheet metal radiating body 102 that is triangular shaped, and having a longitudinal dimension and axis (106) and a width (108). One corner of the radiating body is tapered to form a feed point (104). The length dimension determines the antenna's lowest resonance frequency while the taper created by the width determines the highest point of resonance. For using the bowtie monopole antenna in a communication device, the radiating body (102) is folded or wrapped around towards itself To facilitate the folding or wrapping a mounting substrate (202) is used. The substrate may be provided with retaining features (206) to capture the antenna assembly within the communication device.

Abstract: A wireless communication device (200) is provided, the wireless communication device (200) can include at least one antenna (240), the antenna (240) positioned beneath the face plate (252) and base plate (255) of a user interface (245) of the wireless communication device (200) in which the antenna (240) can be configured to communicate with a signal source.

Abstract: An antenna structure (126) that includes a Planar Inverted-F Antenna (PIFA) (104) and an extendable portion such as a whip element (106). The PIFA (104) operates normally when the extendable portion (106) is retracted and upon extension, an electrical contact is made between the extendable portion (106) and the end (122) of the PIFA (104) that is electrically opposite, i.e., furthest along the electrically conductive path of the PIFA, from the feed structure (202, 208) for the PIFA (104). The electrical length of the composite antenna (126) is then substantially equal to the sum of the electrical length of the PIFA (104) and extendable portion (106). An embodiment disconnects the ground path of the PIFA feed structure upon extension of the extendable portion (106) to provide constant input impedance.

Abstract: A compact multiband Inverted-F antenna (110) that has a compact form factor and is particularly suited for manufacturability and inclusion into small form-factor devices. The Inverted-F Antenna (110) includes a first arm (150) and a substantially parallel second arm (152) connected by a conductive bridge (206). An RF feed that has an RF contact (126) and a ground contact (124) is attached to a middle portion of the second arm (150). The Inverted-F antenna (110) is suitable for mounting on an external face of a non-conductive support (112). The RF feed (150, 152) extends through the non-conductive support to facilitate electrical connection to RF circuits (108). The Inverted-F Antenna (110) has a three band RF characteristic (300), with the upper two bands chosen to form a single, continuous RF band (304).