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Transceiver circuit and its wiring configuration method

A transceiver circuit and capacitor technology, applied in the direction of electrical components, transmission systems, etc., can solve problems affecting circuit layout symmetry, occupied area, impact, etc.

Active Publication Date: 2021-03-19
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Taking the application of WiFi 2.4GHz as an example, when the transceiver outputs signals, it will generate harmonics such as double frequency and triple frequency, which will inevitably affect other frequency bands
[0003] According to the prior art, for example, by increasing the symmetry of the chip to suppress double-frequency harmonics, for the suppression of triple-frequency harmonics, by setting a filter composed of an inductor and a capacitor (refer to Figure 9 , bandstop filter 902), however, the inductance of the filter occupies additional area on the chip and affects the symmetry of the circuit layout (cf. Figure 8 , bandstop filter 802, corresponding to Figure 9 The band-stop filter 902)

Method used

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  • Transceiver circuit and its wiring configuration method
  • Transceiver circuit and its wiring configuration method
  • Transceiver circuit and its wiring configuration method

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Embodiment Construction

[0064] Figure 9 is a circuit schematic diagram illustrating a prior art transceiver circuit, and Figure 8 is a diagram illustrating the transceiver circuit layout of a comparative example of the prior art, compared to Figure 8 The asymmetrical circuit layout structure of the transceiver, the symmetrical transceiver circuit layout diagrams of the first embodiment to the sixth embodiment of the present invention will be presented below. Among them, if omitted Figure 9 The power amplifier PA in the middle and the radio frequency output terminal RF out , Figure 9 It is also a schematic diagram of the transceiver circuit of the first embodiment to the fifth embodiment.

[0065] Figure 1A is a layout diagram of the transceiver circuit 100 according to the first embodiment of the present invention. The transceiver circuit 100 includes a signal coupler 101 , a band rejection filter 102 and a substrate 103 . The signal coupler 101 is disposed on the substrate 103, and include...

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PUM

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Abstract

A transceiver circuit includes a substrate; a signal coupler which is arranged on the substrate and comprises a wound first conductive layer pattern; And a bandstop filter disposed on the substrate and including a wound second conductive layer pattern, wherein the first conductive layer pattern and the second conductive layer pattern are arranged in a manner of being approximately symmetrical relative to the first virtual axis.

Description

technical field [0001] The present invention relates to a transceiver circuit and a wiring configuration method thereof, more particularly, to a transceiver circuit including a band-stop filter and a wiring configuration method thereof. Background technique [0002] Due to the rarity of the spectrum and legal regulations, the wireless transceiver must not cause interference to other frequency bands during transmission. Taking the WiFi 2.4GHz application as an example, when the transceiver outputs signals, it will generate harmonics such as double frequency and triple frequency, which will inevitably affect other frequency bands. [0003] According to the prior art, for example, by increasing the symmetry of the chip to suppress double-frequency harmonics, for the suppression of triple-frequency harmonics, by setting a filter composed of an inductor and a capacitor (refer to Figure 9 , bandstop filter 902), however, the inductance of the filter occupies additional area on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40
Inventor 陈建祐罗正玮施冠宇
Owner REALTEK SEMICON CORP