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Monolithic direct converting transceiver and producing method thereof

A transceiver and conversion technology, which is applied in the field of direct conversion transceivers, can solve the problems of increasing the size of the circuit

Inactive Publication Date: 2007-01-31
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the switching time is also required, it also limits the application of this direct conversion receiver in time division multiple access (TDMA) and increases the circuit size

Method used

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  • Monolithic direct converting transceiver and producing method thereof
  • Monolithic direct converting transceiver and producing method thereof
  • Monolithic direct converting transceiver and producing method thereof

Examples

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Embodiment Construction

[0035] Hereinafter, the present invention will be described in detail by referring to the accompanying drawings.

[0036] First, refer to Figure 5 A direct conversion transceiver in one embodiment of the present invention will be described.

[0037]A mixer 74 mixes the signal received from the antenna 70 and amplified by a first amplifier 72 with a predetermined reference signal supplied from the local oscillator 80 . Thus, the carrier signal is eliminated from the signal output from the first amplifier 72 . The local oscillator 80 provides a predetermined reference signal to the mixer 74 , which is used to separate the carrier signal from the signal received from the antenna 70 and the first amplifier 72 . A shield ground surface 82 is placed between mixer 74 and local oscillator 80 . An output signal from local oscillator 80 is transmitted to mixer 74 through the area bounded by shielded ground surface 82 . The high-frequency components of the signal output from the mix...

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PUM

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Abstract

A one-chipped direct conversion transceiver. The one-chipped direct conversion transceiver includes a substrate on which the mixer unit and the local oscillator are provided as a circuit, a positive hole formed between the mixer unit and the local oscillator in the substrate to a predetermined width and a predetermined depth and filled with a conductive plug to signal leakage irradiated from the mixer unit and signal leakage irradiated from the local oscillator, a shield ground surface, which is formed above the substrate and blocks signal leakage occurring while the signals received through the antenna are input into the mixer and signal leakage occurring while the reference signal is input into the mixer from the local oscillator, a first interconnection, which is formed above the shield ground surface and connects the mixer unit and the local oscillator, and a dielectric layer, which is stacked between the substrate and the shield ground surface and on the shield ground surface to cover the first interconnection and one-chipped.

Description

technical field [0001] The invention relates to a direct conversion transceiver, in particular to a direct conversion transceiver capable of reducing DC bias. Background technique [0002] Although the size, power consumption and price of existing portable wireless terminals have been significantly reduced compared with the earlier stage of development, there is still a need to reduce the size, power consumption and price of current portable wireless terminals to manufacture better quality portable wireless terminals. wireless terminal. [0003] A direct conversion design is a structure that does not use an image rejection filter. Just because the number of components used in the direct conversion structure is reduced, the overall size and power consumption of the portable wireless terminal are also reduced. [0004] However, in order to apply such a direct conversion structure to a portable wireless terminal, the problem of DC offset during frequency mixing should be solv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H05K1/02H05K9/00H01L21/768H01L21/822H01L23/522H01L27/04H04B1/08H04B1/30H04L27/38
CPCH04B1/30H04B1/08H04B1/40
Inventor 寓相炫朴钟爱
Owner SAMSUNG ELECTRONICS CO LTD
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