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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: 






產(chǎn)品A：

尺寸：25mm*25mm

介電常數(shù)：20

工作頻率：1.57542GHz		
產(chǎn)品B：

尺寸：20mm*20mm

介電常數(shù)：37或40

工作頻率：1.57542GHz		






產(chǎn)品C：

尺寸：18mm*18mm

介電常數(shù)：37或40

工作頻率：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




介電常數(shù) 
25
35
37
40
45




Qf【GHz】
120000
80000
64000
40000
44000




Q （測試頻率）
20000

(6G)		
20000

(4G)		
16000

(4G)		
13000

(4G)		
11000

(4G)		




密度(g/cm3)
4.0
6.5
5.2
-
4.6




顏色
白色
黑色
淺綠
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
單位




中間頻率
1575.42
MHz




極化方式
右旋園極化
 




RHCP 增益 @ Zenith
-1.5
dBic




RHCP 增益 @ 10o Elevation
-1.5
dBic




軸比@ Zenith
3
dB




駐波比VSWR
1.6 Max
 




阻抗
50
Ω




天線尺寸
20X20X4
mm











      


規(guī)格
尺寸
頻率
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.




                                            




產(chǎn)品規(guī)格
HF1575D25AS




產(chǎn)品編號
DA0001；DA0002；DA0003 ect.




 外形尺寸(mm)
25*25*4




饋孔偏置方式
中心偏下




 中心頻率(MHz)
1575.42MHz 




 V.S.W.R 
1.5




 帶寬(MHz)
15




 增益(dB)
5




 特性阻抗(Ω)
50




 極化方式
RHCP




 頻率溫度系數(shù)(ppm/℃)
10




 用途
GPS






 

× 


                                                 

   


產(chǎn)品規(guī)格
HF1575D25BS




產(chǎn)品編號
DA0010




 外形尺寸(mm)
25*25*2




饋孔偏置方式
中心偏下




 中心頻率(MHz)
1575.42MHz 




 V.S.W.R 
1.5




 帶寬(MHz)
15




 增益(dB)
5




 特性阻抗(Ω)
50




 極化方式
RHCP




 頻率溫度系數(shù)(ppm/℃)
10




 用途
GPS






 

× 


                                                        

   


產(chǎn)品規(guī)格
HF1575D25AD




產(chǎn)品編號
DA0004




 外形尺寸(mm)
25*25*4




饋孔偏置方式
左下角偏孔




 中心頻率(MHz)
1575.42MHz 




 V.S.W.R 
1.5




 帶寬(MHz)
15




 增益(dB)
5




 特性阻抗(Ω)
50




 極化方式
RHCP




 頻率溫度系數(shù)(ppm/℃)
10




 用途
GPS






 

× 


                                                             

   


產(chǎn)品規(guī)格
HF1575D20AS




產(chǎn)品編號
DA0006




 外形尺寸(mm)
20*20*4




饋孔偏置方式
左下角偏孔




 中心頻率(MHz)
1575.42MHz 




 V.S.W.R 
1.5




 帶寬(MHz)
15




 增益(dB)
5




 特性阻抗(Ω)
50




 極化方式
RHCP




 頻率溫度系數(shù)(ppm/℃)
10




 用途
GPS






 

× 


                                                     



   


產(chǎn)品規(guī)格
HF1575D18AS




產(chǎn)品編號
DA0007




 外形尺寸(mm)
18*18*4




饋孔偏置方式
左下角偏孔




 中心頻率(MHz)
1575.42MHz 




 V.S.W.R 
1.5




 帶寬(MHz)
15




 增益(dB)
5




 特性阻抗(Ω)
50




 極化方式
RHCP




 頻率溫度系數(shù)(ppm/℃)
10




 用途
GPS






 

× 


                                 

   


產(chǎn)品規(guī)格
HF1575D20BS




產(chǎn)品編號
DA0008




 外形尺寸(mm)
20*20*2




饋孔偏置方式
左下角偏孔




 中心頻率(MHz)
1575.42MHz 




 V.S.W.R 
1.5




 帶寬(MHz)
15




 增益(dB)
5




 特性阻抗(Ω)
50




 極化方式
RHCP




 頻率溫度系數(shù)(ppm/℃)
10




 用途
GPS






 

× 


                                              

   


產(chǎn)品規(guī)格
HF1575D18BS




產(chǎn)品編號
DA0009




 外形尺寸(mm)
18*18*2




饋孔偏置方式
左下角偏孔




 中心頻率(MHz)
1575.42MHz 




 V.S.W.R 
1.5




 帶寬(MHz)
15




 增益(dB)
5




 特性阻抗(Ω)
50




 極化方式
RHCP




 頻率溫度系數(shù)(ppm/℃)
10




 用途
GPS






 

×







                

               								
                    

                    
	
                

            

			
        

    








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