Introduction

The world of high-frequency printed circuit boards (PCBs) demands materials that can deliver exceptional performance, stability, and electrical properties. In this realm, Rogers DiClad 870 PCB comes to the forefront as a woven fiberglass reinforced, PTFE-based composite that offers outstanding characteristics for demanding applications. With its lower dielectric constant (Dk), excellent dimensional stability, and uniform electrical properties, DiClad 870 unleashes a new level of efficiency and reliability. In this article, we will delve into the features, benefits, construction details, and typical applications of DiClad 870 PCB.

Introduction of DiClad 870

Rogers DiClad 870 laminates are engineered with a high ratio of PTFE content and fewer plies of woven fiberglass reinforcement. This unique composition results in laminates with lower dielectric constants (Dk) and dissipation factors, while maintaining a similar thickness to other laminates in the DiClad series. The woven fiberglass reinforcement provides exceptional dimensional stability, surpassing nonwoven fiberglass reinforced PTFE-based laminates with similar dielectric constants. Furthermore, the coated fiberglass plies in DiClad 870 are aligned in the same direction, enhancing its structural integrity.

What are the key features and benefits of DiClad 870 PCB?

Features

DiClad 870 5mil substrate PCB offers a range of impressive features that make it an ideal choice for high-frequency applications:

1)DK of 2.33 at 10 GHz and 1 MHz, 50% RH:

The low dk pcb materials ensures minimal signal loss and excellent signal integrity.

2)Dissipation factor of 0.0013 at 10 GHz, 0.0009 at 1 MHz, 50% RH:

DiClad 870 PCB exhibits extremely low loss tangent, enabling efficient transmission of high-frequency signals.

3)Moisture Absorption:

With a moisture absorption rate of only 0.02%, DiClad 870 maintains its electrical and mechanical properties even in humid environments.

4)CTE (Coefficient of Thermal Expansion):

The CTE values of 17 ppm/°C in the X-axis, 29 ppm/°C in the Y-axis, and 217 ppm/°C in the Z-axis ensure dimensional stability across varying temperatures.

5)Copper Peel Strength:

DiClad 870 exhibits a high copper peel strength of 14 lbs/in, ensuring excellent bond integrity.

6)UL 94-V0 Flammability:

The PCB material meets the stringent UL 94-V0 flammability rating, providing enhanced safety.

7)NASA Outgassing:

DiClad 870 is suitable for space applications, as it demonstrates minimal outgassing properties, with a total mass loss of 0.01%, collected volatiles of 0.01%, and negligible water vapor recovery.

Benefits:

The utilization of DiClad 870 high frequency PCB brings numerous benefits to high-frequency electronic designs:

1)Extremely Low Loss Tangent:

DiClad 870's low loss tangent translates to minimal signal attenuation, resulting in high transmission efficiency and reduced insertion loss.

2)Excellent Dimensional Stability:

The woven fiberglass reinforcement ensures exceptional dimensional stability, reducing the risk of warping or distortion even under harsh conditions.

3)Product Performance Uniformity:

DiClad 870 exhibits consistent electrical and mechanical properties, ensuring uniform performance across the entire PCB.

4)Electrical Properties are Highly Uniform Across Frequency:

With stable Dk over a wide frequency range, DiClad 870 enables accurate signal propagation without frequency-dependent variations.

5)Consistent Mechanical Performance:

The robust composition of DiClad 870 guarantees reliable mechanical performance, including high copper peel strength and resistance to mechanical stress.

6)Excellent Chemical Resistance:

DiClad 870 withstands exposure to various chemicals and solvents, making it suitable for demanding environments.

7)Lowest Moisture Absorption Among PTFE-Based Composites:

The minimal moisture absorption of DiClad 870 enhances its reliability and performance in humid conditions.

8)Stable Dk Supports Wider Line Widths for Lower Insertion Loss:

DiClad 870's low dielectric constant allows for wider line widths, reducing insertion loss and improving signal integrity.

Type of Artwork and Accepted Standard

The artwork for the DiClad 870 Rogers PCB material is supplied in Gerber RS-274-X format, a widely accepted standard for PCB fabrication and assembly. The PCB design adheres to the IPC-Class-2 standard, ensuring high-quality manufacturing and reliability.

Availability

DiClad 870 antenna grade laminates PCB is available worldwide, making it accessible for electronic designers and manufacturers across the globe.

Typical Applications

DiClad 870 Rogers substrates PCB finds its application in various high-frequency electronic systems, including:

1)Radar Feed Networks:

DiClad 870 facilitates the efficient transmission of radar signals, ensuring accurate detection and tracking.

2)Commercial Phased Array Networks:

Phased array networks benefit from DiClad 870's low loss tangent and stable Dk, enabling precise beamforming and signal control.

3)Low Loss Base Station Antennas:

The exceptional electrical properties and low moisture absorption of DiClad 870 make it suitable for high-performance base station antennas.

4)Guidance Systems:

DiClad 870 helps maintain signal integrity in guidance systems, ensuring reliable and accurate navigation.

5)Digital Radio Antennas:

The stable Dk and low insertion loss of DiClad 870 contribute to the optimal performance of digital radio antennas.

6)Filters, Couplers, LNAs:

DiClad 870 enables the construction of high-quality filters, couplers, and low-noise amplifiers vital for efficient signal processing.

Conclusion

Rogers DiClad 870 PCB sets a new standard for high-frequency applications, offering exceptional performance, stability, and electrical properties. With its lower dielectric constant, excellent dimensional stability, and uniformity of electrical properties, DiClad 870 empowers engineers to design and manufacture cutting-edge electronic systems. Whether it's radar feed networks, phased array networks, or digital radio antennas, DiClad 870 high-frequency printed boards delivers the reliability and efficiency required for demanding applications. Embrace the power of DiClad 870 and unlock the potential of your high-frequency designs.