4 Layer RF Circuit Board on Rogers 60mil RO4350B and 10mil RO4350B with Back Drill for UHF Coupler

(Printed circuit boards are custom-made products; the images and specifications shown are for reference only.)

Introduction

Hello Everyone,
This 4 layer RF PCB is constructed using 60mil RO4350B and 10mil RO4350B, specifically designed for UHF coupler applications. Let’s take a look at the stack-up.

The base materials consist of a 60mil RO4350B core and a 10mil RO4350B core, added with 4mil RO4450F prepreg. Each layer features 35 μm (1oz) copper, resulting in a final thickness of 2.1mm. The pads are plated with immersion gold. This design incorporates back-drilled vias from the 10mil core, which effectively reduces noise interference and enhances signal integrity. By employing back drilling, the complexity of PCB fabrication is minimized, eliminating the need for buried or blind vias.

Features and Benefits:

1.Stable Dielectric Constant: RO4350B maintains a consistent dielectric constant across a wide frequency range.
2.Ideal for Broadband Applications: The properties of RO4350B make it an excellent substrate choice for broadband uses.
3.On-Time Delivery: We achieve a delivery rate higher than 98%, ensuring timely service.
4.Focus on Small to Medium Production Runs: We specialize in small batches and medium volume production.
5.Rigorous WIP Inspection: Our strict work-in-progress inspection and monitoring guarantee high-quality standards.

Applications

Antennas
Interference Filters
Sound Control Switch Induction
Trunk Amplifiers

PCB Data Sheet