Wireless terminals
AssigneeNXP B.V.
InventorKevin R. Boyle
Life of this patent
Estimating the term…
Abstract
A wireless terminal for use in the transmitting and receiving frequency bands of a frequency duplex system comprises transmitting and receiving stages (Tx, Rx) and signal propagating means (22, 24, 26) coupled to the transmitting and receiving stages. The signal propagating means comprises a narrow band antenna structure (24), such as a Planar Inverted-F Antenna (PIFA), having sufficient bandwidth to cover the larger one of the transmitting and receiving frequency bands and a BAW receiving filter (26) and a BAW transmitting filter (22) coupled by respective feeds to the antenna structure (24). The filters (22, 26) enable the antenna structure to have a small volume and be reusable at different FDD frequencies.
Claims6
A wireless terminal for use in the transmitting and receiving frequency bands of a frequency duplex system, comprising transmitting and receiving stages and signal propagating means coupled to the transmitting and receiving stages, wherein the signal propagating means comprises a single radiating antenna structure having sufficient bandwidth to cover the larger one of the transmitting and receiving frequency bands, a receiving filter and a transmitting filter coupled by respective feeds to the antenna structure, wherein the antenna structure comprises a Planar Inverted-F Antenna (PIFA) with two differential slots which separate the PIFA into a central element and two outer elements, the central and outer elements being interconnected, in that a free end of the central element is connected to a ground plane and in that free ends of the two outer elements are connected respectively to the receiver and transmitter filters.
A module for use in a wireless terminal operable in the transmitting and receiving frequency bands of a frequency duplex system, comprising signal propagating means including a single radiating antenna structure having sufficient bandwidth to cover the larger one of the transmitting and receiving frequency bands, a receiving filter and a transmitting filter coupled by respective feeds to the antenna structure and having terminals for connection to the RF stages of the wireless terminal, wherein the antenna structure comprises a Planar Inverted-F Antenna (PIFA) with two differential slots which separate the PIFA into a central element and two outer elements, the central and outer elements being interconnected, in that a free end of the central element is connected to a ground plane and in that free ends of the two outer elements are connected respectively to the receiver and transmitter filters.
Dependencies are inferred from the claim text.