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Mobile wireless communications device with antenna contact having reduced RF inductance

A communication device, mobile wireless technology, applied in wireless communication, telephone communication, contact parts, etc., can solve the problems of TRP total radiation power reduction, harmonic interference, power amplifier linearity problems, etc.

Active Publication Date: 2012-05-30
RES IN MOTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Modulation schemes using in-phase (I) and quadrature (Q) circuits can cause additional problems, resulting in linearity issues with power amplifiers and poor antenna matching
Due to e.g. higher nonlinearity of the power amplifier, this causes TRP (Total Radiated Power) reduction and causes harmonic interference problems

Method used

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  • Mobile wireless communications device with antenna contact having reduced RF inductance
  • Mobile wireless communications device with antenna contact having reduced RF inductance
  • Mobile wireless communications device with antenna contact having reduced RF inductance

Examples

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Embodiment Construction

[0027] This description has been made with reference to the accompanying drawings, in which preferred embodiments are shown. However, many different embodiments could be used, therefore the description should not be construed as limited to the embodiments described herein. Rather, these examples are provided so that this disclosure will be thorough and complete. Like reference numerals refer to like elements throughout the drawings.

[0028] about Figure 1-3 will be briefly described, Figure 1-3 Examples of mobile wireless communication devices, such as hand-held portable cellular radios, are disclosed that may incorporate non-limiting examples of various circuits, including improved battery charging contact circuits, in-phase and quadrature modulation and power amplification circuits, and the following described antenna contacts. Figure 1-3 A number of non-limiting examples of different types of functional circuit components and their interconnections are shown and ope...

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PUM

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Abstract

A mobile wireless communications device includes a housing and at least one circuit board. Radio frequency (RF) circuitry is carried by the circuit board and includes a transceiver. A processor is carried by the at least one circuit board and operative with the RF circuitry. An antenna is mounted within the housing. An antenna contact is secured on the at least one circuit board and operatively connects the RF circuitry and engages the antenna at an antenna contact point. Electromagnetic interference (EMI) shielding is positioned at the antenna contact point and reduces RF inductance effects.

Description

technical field [0001] The present invention relates to the field of communication devices, and more particularly, to mobile wireless communication devices and related methods. Background technique [0002] Cellular communication systems have grown in popularity and have become an integral part of personal and business communications. Cellular phones allow users to make and receive phone calls almost anywhere they travel. Additionally, as cellular telephone technology has increased, so has the functionality of cellular devices. For example, many cellular devices now incorporate Personal Digital Assistant (PDA) features such as calendars, address books, task lists, calculators, memos and writing programs. These multifunction devices typically allow users to wirelessly send and receive electronic mail (email) messages, as well as access the Internet via, for example, cellular networks and / or wireless local area networks (WLANs). [0003] As the capabilities of cellular comm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W88/02H04M1/725H04B1/38H01Q1/24H01Q1/48H05K9/00
CPCH01Q1/526H01Q1/243H01R13/24H04M1/0202H01R2201/02H01R12/57H01R2201/16
Inventor 朱里中乔治·曼科鲁斯麦克尔·科里根佩里·亚尔穆西泽斯基徐俊俊
Owner RES IN MOTION LTD