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    WELCOME TO WUXI CITY HUIFENG ELECTRONIC.CO.LTD！
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    Ceramic dielectric antenna

    Pbulish：admin　　time：2015年04Month21Day

    Ceramic dielectric antenna can be used not only in GPS global positioning system, but also in communication between modern Internet of Things devices. The company in line with the achievement of customers, achievements of their own business philosophy, to provide customers with professional, targeted product design (customers to provide product requirements).

     

    According to the different needs of customers, the company can provide different shapes of antenna, generally for the plate dielectric antenna and rod dielectric antenna.


    Product description

    The company has now successfully developed multiple media antennas.

    K25, K35, K37, K40, K45

    It has different dielectric constant and working frequency, and is widely used in:

    GPS ceramic antenna;

    Beidou satellite antenna;

    Timing antenna;

    10X10mm to 100X100mm can be used for the size of ceramic antenna;

    Custom-made ceramic antenna products.

    The company's existing products are applicable to the range of working frequency range from 30MHz to 10GHz. If the company needs the company to develop the corresponding low frequency and higher frequency products according to the requirements of the customer.



    Product information
    Huifeng electronics has now set up two kinds of dielectric antenna products:

    产品A：
    尺寸：25mm*25mm
    介电常数：20
    工作频率：1.57542GHz    		 产品B：
    尺寸：20mm*20mm
    介电常数：37或40
    工作频率：1.57542GHz

    产品C：
    尺寸：18mm*18mm
    介电常数：37或40
    工作频率：1.57542GHz

    The existing products use the same size of the vibrator, its size: 1.4mm*7.0mm, the product surface coating with silver layer, according to the different working frequency demand, can adjust the size of the silver layer coverage to achieve different working frequencies.

    Product performance

      K25 K35 K37 K40 K45
    介电常数 25 35 37 40 45
    Qf【GHz】 120000 80000 64000 40000 44000
    Q （测试频率） 20000
    (6G)    		 20000
    (4G)    		 16000
    (4G)    		 13000
    (4G)    		 11000
    (4G)
    密度(g/cm3) 4.0 6.5 5.2 - 4.6
    颜色 白色 黑色 浅绿 棕色 棕色 
    Typical GPS antenna performance (based on on 1.2 x 1.2 inch [30 x 30 mm] FR-4 ground plane

    科目 典型性能 单位
    中间频率 1575.42 MHz
    极化方式 右旋园极化  
    RHCP 增益 @ Zenith -1.5 dBic
    RHCP 增益 @ 10o Elevation -1.5 dBic
    轴比@ Zenith 3 dB
    驻波比VSWR 1.6 Max  
    阻抗 50 Ω
    天线尺寸 20X20X4 mm

    规格 尺寸 频率 阻抗 材料
    HF1575D25AS 25*25*4 1575.42MHz 50 K25
    HF1575D25BS 25*25*2 1575.42MHz 50 K25
    HF1575D25AD 25*25*4 1575.42MHz 50 K25
    HF1575D20AS 20*20*4 1575.42MHz 50 K40
    HF1575D18AS 18*18*4 1575.42MHz 50 K40
    HF1575D20BS 20*20*2 1575.42MHz 50 K40
    HF1575D18BS 18*18*2 1575.42MHz 50 K40

    Application of dielectric antenna
    With the development of new technology, miniaturized dielectric antennas are increasingly used in new products, such as:
    Satellite navigation;
    RDIF logistics field;
    Wireless communication router;
    Mobile phone built-in antenna;
    Communication base station;
    Dielectric resonator antenna;
    Radar;
    Satellite TV set-top box;
    The Internet of things equipment has a built-in communication antenna ect.

    The company has a certain accumulation of technology in various fields of dielectric antenna, can provide customers with different requirements of professional dielectric antenna design.

    Application characteristics of dielectric antenna
    Microwave dielectric ceramics (MWDC) have the characteristics of high dielectric constant, low dielectric loss, high quality factor and small resonant frequency temperature coefficient. After applying the dielectric resonator antenna, the dielectric constant of dielectric resonator has a wide selection range (6~140), allowing the designer to control the scale and bandwidth flexibly, the radiation efficiency is more than 95%, and the shape is more than 95%. The antenna design has greater flexibility, more feeding mode, simpler processing and lower cost, and is convenient for integrated design.
    Technical index of dielectric antenna
    The dielectric constant is 6.1 + 0.2, 10 + 0.2, 14 + 0.2, 26 + 0.2, 35 + 0.2;
    Loss angle tangent: < 3 x 10-4;
    The frequency temperature coefficient: < < f > < < 10ppm/ >;
    Bending strength: more than 100MPa;
    Resistivity: > 1012 Omega cm;

    The thermal conductivity is greater than or equal to 3W/m. K, which meets the high power requirements of microwave devices.

                                               
    产品规格 HF1575D25AS
    产品编号 DA0001；DA0002；DA0003 ect.
     外形尺寸(mm) 25*25*4
    馈孔偏置方式 中心偏下
     中心频率(MHz) 1575.42MHz
     V.S.W.R  1.5
     带宽(MHz) 15
     增益(dB) 5
     特性阻抗(Ω) 50
     极化方式 RHCP
     频率温度系数(ppm/℃) 10
     用途 GPS

     

    ×
                                                    
    产品规格 HF1575D25BS
    产品编号 DA0010
     外形尺寸(mm) 25*25*2
    馈孔偏置方式 中心偏下
     中心频率(MHz) 1575.42MHz
     V.S.W.R  1.5
     带宽(MHz) 15
     增益(dB) 5
     特性阻抗(Ω) 50
     极化方式 RHCP
     频率温度系数(ppm/℃) 10
     用途 GPS

     

    ×
                                                           
    产品规格 HF1575D25AD
    产品编号 DA0004
     外形尺寸(mm) 25*25*4
    馈孔偏置方式 左下角偏孔
     中心频率(MHz) 1575.42MHz
     V.S.W.R  1.5
     带宽(MHz) 15
     增益(dB) 5
     特性阻抗(Ω) 50
     极化方式 RHCP
     频率温度系数(ppm/℃) 10
     用途 GPS

     

    ×
                                                               
    产品规格 HF1575D20AS
    产品编号 DA0006
     外形尺寸(mm) 20*20*4
    馈孔偏置方式 左下角偏孔
     中心频率(MHz) 1575.42MHz
     V.S.W.R  1.5
     带宽(MHz) 15
     增益(dB) 5
     特性阻抗(Ω) 50
     极化方式 RHCP
     频率温度系数(ppm/℃) 10
     用途 GPS

     

    ×
                                                         
    产品规格 HF1575D18AS
    产品编号 DA0007
     外形尺寸(mm) 18*18*4
    馈孔偏置方式 左下角偏孔
     中心频率(MHz) 1575.42MHz
     V.S.W.R  1.5
     带宽(MHz) 15
     增益(dB) 5
     特性阻抗(Ω) 50
     极化方式 RHCP
     频率温度系数(ppm/℃) 10
     用途 GPS

     

    ×
                                    
    产品规格 HF1575D20BS
    产品编号 DA0008
     外形尺寸(mm) 20*20*2
    馈孔偏置方式 左下角偏孔
     中心频率(MHz) 1575.42MHz
     V.S.W.R  1.5
     带宽(MHz) 15
     增益(dB) 5
     特性阻抗(Ω) 50
     极化方式 RHCP
     频率温度系数(ppm/℃) 10
     用途 GPS

     

    ×
                                                 
    产品规格 HF1575D18BS
    产品编号 DA0009
     外形尺寸(mm) 18*18*2
    馈孔偏置方式 左下角偏孔
     中心频率(MHz) 1575.42MHz
     V.S.W.R  1.5
     带宽(MHz) 15
     增益(dB) 5
     特性阻抗(Ω) 50
     极化方式 RHCP
     频率温度系数(ppm/℃) 10
     用途 GPS

     

    ×