Shenzhen Bicheng Electronics Technology Co., Ltd

 

 

 

The selection of materials with different Dk values plays a crucial role in high-frequency applications. Insertion loss, a key factor in these applications, encompasses four components: conductor loss, dielectric loss, leakage loss, and radiation loss. Conductor loss is influenced by surface roughness, while dielectric loss is determined by the dissipation factor of the circuit material. Leakage loss is typically not a concern for high-frequency circuit materials due to their high volume resistivity. On the other hand, radiation loss, the amount of energy radiated off the circuit, is generally undesirable as it increases signal loss and can interfere with neighboring circuitry. Factors such as circuit design, substrate thickness, PCB fabrication anomalies, substrate Dk, and frequency impact radiation loss. High-frequency circuits using materials with lower Dk values tend to exhibit increased radiation loss, whereas those with higher Dk values experience reduced radiation loss. Additionally, Dk influences circuit size, with lower Dk materials corresponding to longer wavelengths. Coupled features in RF engineering, connected by electric fringing fields, are critical for various RF applications, and the strength and intensity of these coupled fields vary with Dk dependency. Considering these aspects, the choice of materials with different Dk values becomes essential to optimize performance and meet specific requirements in high-frequency applications.

 

 

Item		Designator	DK
1		RO3010 Copper Clad Laminates	10.2
2		RO3210 Copper Clad Laminates	10.2
3		RT/duroid 6010.2LM Copper Clad Laminates	10.2
4		CER-10 Copper Clad Laminates	10.0
5		TMM10 Copper Clad Laminates	9.2
6		TMM10i Copper Clad Laminates	9.8
7		TMM13i Copper Clad Laminates	12.85
8		AD1000 Copper Clad Laminates	10.2
9		RF-10 Copper Clad Laminates	10.2
10		F4BTMS1000 Copper Clad Laminates	10.0
11		TP920 Copper Clad Laminates	9.2
12		TP1020 Copper Clad Laminates	10.2
13		TP2500 Copper Clad Laminates	25.0
14		TF920 Copper Clad Laminates	9.2
15		TF1020 Copper Clad Laminates	10.2
16		TF1600 Copper Clad Laminates	16.0
17		TFA 1020 Copper Clad Laminates	10.2