Patent application number | Description | Published |
20110133994 | INTERNAL MULTI-BAND ANTENNA AND METHODS - An internal multi-band antenna and a radio device comprising such an antenna. A radiator ( | 06-09-2011 |
20110156972 | LOOP RESONATOR APPARATUS AND METHODS FOR ENHANCED FIELD CONTROL - A radiating antenna element intended for portable radio devices and methods for designing manufacturing the same. In one embodiment, a loop resonator structure for enhanced field (e.g., electric field) is provided, the resonator having an inductive and a capacitive element forming a resonance in a first frequency band. The loop resonator structure is disposed substantially on the ground plane, thereby altering electrical energy distribution. The location of the resonant element is selected to reduce electric field strength proximate to one or more sensitive components, such as a mobile device earpiece, thereby improve hearing aid compliance. Capacitive tuning of the resonator, and the use of multiple resonator structures on the same device, are further described. | 06-30-2011 |
20110241950 | COMBINATION ANTENNA AND METHODS - An antenna combination especially intended for small radio devices. It comprises a main antenna, the radiator ( | 10-06-2011 |
20110260939 | DISTRIBUTED MULTIBAND ANTENNA AND METHODS - A distributed multiband antenna intended for radio devices, and methods for designing manufacturing the same. In one embodiment, a planar inverted-F antenna (PIFA) configured to operate in a high-frequency band, and a matched monopole configured to operate in a low-frequency band, are used within a handheld mobile device (e.g., cellular telephone). The two antennas are placed on substantially opposing regions of the portable device. The use of a separate low-frequency antenna element facilitates frequency-specific antenna matching, and therefore improves the overall performance of the multiband antenna. The use of high-band PIFA reduces antenna volume, and enables a smaller device housing structure while also reducing signal losses in the high frequency band. These attributes also advantageously facilitate compliance with specific absorption rate (SAR) tests; e.g., in the immediate proximity of hand and head “phantoms” as mandated under CTIA regulations. Matching of the low-frequency band monopole antenna is further described. | 10-27-2011 |
20120119955 | ADJUSTABLE MULTIBAND ANTENNA AND METHODS - An adjustable multiband antenna especially intended to mobile terminals. The antenna structure comprises a radiator ( | 05-17-2012 |
20130027254 | MULTIBAND SLOT LOOP ANTENNA APPARATUS AND METHODS - A multiband slot loop antenna apparatus, and methods of tuning and utilizing the same. In one embodiment, the antenna configuration is used within a handheld mobile device (e.g., cellular telephone or smartphone). The antenna comprises two radiating structures: a ring or loop structure substantially enveloping an outside perimeter of the device enclosure, and a tuning structure disposed inside the enclosure. The ring structure is grounded to the ground plane of the device so as to create a virtual portion and an operating portion. The tuning structure is spaced from the ground plane, and includes a plurality of radiator branches effecting antenna operation in various frequency bands; e.g., at least one lower frequency band and three upper frequency bands. On one implementation, a second lower frequency band radiator is effected using a reactive matched circuit coupled between a device feed and a radiator branch. | 01-31-2013 |
20130127674 | ANTENNA WITH COVER RADIATOR AND METHODS - A monopole antenna applicable especially to small mobile stations. The radiator ( | 05-23-2013 |
20130162486 | SWITCHABLE DIVERSITY ANTENNA APPARATUS AND METHODS - An active diversity antenna apparatus and methods of tuning and utilizing the same. In one embodiment, the active diversity antenna is used within a handheld mobile device (e.g., cellular telephone or smartphone), and enables device operation in several low frequency bands (LBs). The exemplary implementation of the active LB diversity antenna comprises a directly fed radiator portion and a grounded (coupled fed) radiator portion. The directly fed portion is fed via a feed element connected to an antenna feed. The coupled fed portion of the LB antenna is grounded, forming a resonating part of the low frequency band. A gap between the two antenna portions is used to adjust antenna Q-value. Resonant frequency tuning is achieved by changing the length of the grounded element. The LB feed element is disposed proximate the feed element of a high band diversity antenna, thus reducing transmission losses and improving diplexer operation. | 06-27-2013 |
20130194150 | ANTENNA OF A LAPTOP DEVICE AND METHODS - An antenna of a laptop device, which can be connected wirelessly to a communication network. The apparent size of the antenna's ground plane (GND), as ‘seen’ from the feed of the monopole radiator ( | 08-01-2013 |
20130241779 | MULTI-RESONANCE ANTENNA, ANTENNA MODULE, RADIO DEVICE AND METHODS - An internal dual band antenna meant for small radio devices. In one embodiment, the antenna contains two radiators and a parasite element, which is shared between them. The parasite element is implemented on three sides of the antenna module, which are perpendicular to the side where the two radiators are implemented. The short-circuit conductor of the parasite element extends close to the supply point/points of the antenna on the circuit board of the radio device and is connected to the ground plane of the radio device. The antenna structure is dimensioned such that the two resonance frequencies on both functional bands are at a lower frequency than the resonance frequencies of the actual radiators. Accordingly, both the lower and upper frequency band is widened. The shape of the parasite element does not weaken the adaptation of the antenna in either functional band. | 09-19-2013 |
20150077293 | SHORT-RANGE ANTENNA STRUCTURE AND METHODS - Antenna apparatus and methods of use and tuning. In one exemplary embodiment, the solution of the present disclosure is particularly adapted for small form-factor, metal-encased applications such as smartphones or tablets (and “phablets”) utilizing near field communication (NFC) interfaces. The solution increases the effective size of the antenna without requiring any significant additional space or other structural modifications to the host device (such as changes to the device's metal case or size), while still maintaining a high degree of electrical performance (including a high Q factor). | 03-19-2015 |