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Array antenna and radio communication apparatus using the same

一种阵列天线、无馈电的技术，应用在天线、电话通信、谐振长天线等方向，能够解决安装花费工夫等问题，达到抑制电容量变动的效果

Inactive Publication Date: 2005-08-24
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] Also, in an array antenna having a variable reactance circuit using varactor diodes, since there is a polarity in the voltage applied to the varactor diodes 301, 302, it is necessary to pay attention not only when designing but also when installing. characteristics, there is a problem that it takes time to install

Method used

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  • Array antenna and radio communication apparatus using the same
  • Array antenna and radio communication apparatus using the same
  • Array antenna and radio communication apparatus using the same

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Embodiment Construction

[0066] Hereinafter, the array antenna and wireless communication device of the present invention will be described in detail with reference to the drawings.

[0067] Figure 1 to Figure 5 It is a figure which respectively shows the array antenna of 1st Embodiment of this invention. figure 1 It is a schematic circuit diagram showing the array antenna of the present invention including a variable phase shifter. figure 2 is an equivalent circuit diagram showing a 90-degree hybrid variable phase shifter P using capacitance variable capacitors having five variable capacitance elements. Figure 3 ~ Figure 5 is a diagram showing an example of a capacitance variable capacitor having five variable capacitance elements, image 3 is a plan view in perspective, Figure 4 It is a plan view showing the state of production, Figure 5 yes image 3 The A-A' line profile.

[0068] The array antenna 100 includes a plurality of radiating elements 11, a plurality of feeding lines 12, 13 fo...

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PUM

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Abstract

In the array antenna provided with the variable phase shifter P, the variable phase shifter P has a transmission line or a circulator, a variable capacitance capacitor Ct is connected to a ground side of the transmission line or a ground side terminal of the circulator, in the variable capacitance capacitor Ct, a plurality of variable capacitive elements C1 to C5 employing thin film dielectric layers whose dielectric constant varies with the applied voltage are connected in parallel, in terms of DC, and in series in terms of high frequencies between the input terminal and the output terminal. Thus, an array antenna is realized, whose directivity can be controlled adaptively and which is provided with the stable variable phase shifter having little waveform distortion and intermodulation distortion, superior withstanding power, and with low loss even at high frequencies.

Description

technical field [0001] The present invention relates to a directivity-controllable array antenna having a variable phase shifter or a variable reactance circuit for communication equipment in microwave bands, millimeter wave bands, etc., and a wireless communication device using the array antenna. In more detail, the present invention relates to a variable phase shifter or a variable reactance circuit using a variable capacitance element capable of changing capacitance through a dielectric layer having a dielectric constant change caused by an applied voltage, by changing its capacitance to make the reactance The directivity of the array antenna can be changed by changing the value of the array antenna. In particular, an array antenna with excellent characteristics such as power resistance, low distortion, and low loss, stable characteristics, low cost, and simple configuration, and a wireless communication device using the array antenna. Background technique [0002] In com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/18H01P3/00H01P3/08H01P9/00H01Q3/00H01Q3/36H01Q11/12H04B1/04H04M1/00
CPCH01P1/18H01P9/00H01P3/081H01Q3/36
Inventor 生田贵纪佐藤昭典
Owner KYOCERA CORP
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