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A kind of application method of double stopband switchable and continuously adjustable uwb antenna

An application method, the technology of double stop band, applied in the direction of antenna, antenna grounding switch structure connection, electrical components, etc.

Active Publication Date: 2019-04-30
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing stopband UWB antenna can only realize the switching between several stopbands or the continuous adjustment of the center frequency in one stopband.

Method used

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  • A kind of application method of double stopband switchable and continuously adjustable uwb antenna
  • A kind of application method of double stopband switchable and continuously adjustable uwb antenna
  • A kind of application method of double stopband switchable and continuously adjustable uwb antenna

Examples

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Embodiment 1

[0027] First, download the varactor diode model SMV1231-079LF and the switching diode datasheet model SMP1320-079LF, and find the spice model and package size of the varactor diode SMV1231-079LF, such as figure 1 As shown, wherein, the bias-capacitance of the varactor diode is shown in Table 1;

[0028] Table 1 Bias - Capacitance

[0029] Bias voltage (V)

Diode Capacitance (pF)

0

2.35

1

1.58

2

1.22

3

0.970

4

0.794

5

0.683

6

0.613

7

0.567

8

0.534

9

0.512

10

0.497

11

0.492

12

0.487

13

0.480

14

0.472

15

0.466

[0030] Then add the spice model in ADS to set the sweep frequency range at 3.1-10.6GHz, output the Z parameter, and obtain the resistance R value, inductance L value and capacitance C value of the equivalent RLC series circuit; and compare it with the bias voltage-capacitance table in the datasheet Compare to con...

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Abstract

The invention discloses a dual-stop-band switchable and continuously adjustable UWB antenna and an application method thereof. The UWB antenna comprises a UWB antenna body and a stop-band structure, wherein two switching diodes and two variable capacitance diodes are arranged in the stop-band structure; when 0V voltage and 5V voltage are respectively applied to two ends of the two switching diodes, the condition that on and off two states correspond to switching between two stop-bands is achieved; and when continuously adjustable voltage of 0 to 15V is applied to two ends of the two variable capacitance diodes, the capacitance continuously changes, so that the center frequency of each stop-band is continuously adjustable. The UWB antenna capable of simultaneously achieving a stop-band switchable function and a stop-band continuously adjustable function is provided for the first time; and the stop-band switchable UWB antenna is combined with the stop-band continuously adjustable UWB antenna.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an application method of a UWB antenna with switchable and continuously adjustable dual stop bands. Background technique [0002] Due to the characteristics of ultra-wideband, UWB antennas have been widely studied by scholars around the world in recent years. It is generally believed that the spectrum of the UWB antenna is 3.1-10.6GHz (S11 is less than -10dB). The frequency range covered by the UWB antenna overlaps with many other frequency bands, such as the WLAN frequency band of 5-6GHz, the X-band of 8-12GHz, and so on. If no measures are taken for this overlap, electromagnetic interference will be caused. Therefore, in the frequency band of the UWB antenna, some unnecessary frequency bands need to be shielded, that is, a stop band is generated at a specific frequency band, which is a band-stop UWB antenna. With the development of smart antennas, reconfigurable technologies...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q23/00
Inventor 崔铁军李允博吴伟
Owner SOUTHEAST UNIV