A coaxial connector called an End Launch Connector connects a coaxial cable to a test board. The connection is attached to a PCB board's end or edge and transmits microwave radiation from a coaxial cable to a circuit on a PCB board. The three significant configurations shown in the figure are Angled End-Launch connections, Vertical End-Launch connectors, and Horizontal End-Launch connectors.
Unlike vertical-mount or
right-angle (perpendicular) mount connections, end launch connectors are
frequently favoured over standard connectors because their design lowers
reflections.
High-frequency or
high-performance applications use these connections. Regular commercial links,
which are terminated by soldering to the PCB board, may be used for most
applications below 6 GHz since they are more cost-effective and readily
accessible.
End Launch Connector
Applications: End launches high-frequency transfer signals from coaxial cable
to microstrip transmission lines or coplanar waveguides. End launch connections
transfer RF energy from a coaxial transmission line to the planar transmission
line's structures. End-launch applications require careful consideration of
connection design, mounting, and board launch architecture. Reviews such as PCB
material, thickness, and connection choices are critical for decreasing
reflection losses.
How to mount the end launch
connector to the circuit
The following are the procedures
required to install the end launch connectors to a circuit board:
When hand soldering, a fixture
should be utilized as a guide. The institution keeps the insulator and contact
of the connection in the right place. During clamping, it shields the
connection from harm.
Place the connection on the
circuit board with the contact pin aligned with the signal trace's center.
Ensure that the connector's axis is parallel to the board's plane and that the
connecting legs and contact pins are flush with the circuit board's top.
A little part of the Teflon insulation protrudes from the connector's rear mating plane. While soldering the central conductor pin to the trace, it functions as a seal. Clamp the connection firmly against the board's edge. It forces the insulator seal against the board edge, thus creating a barrier between the inner and outer conductors and avoiding solder bridging. Before attaching the center pin to the trace, solder the ground legs and ground posts to the top and bottom of the board, making the connection in the correct location.
Once the connection body is
correctly grounded to the board, a small quantity of solder can bind the center
contact pin to the trace. The solder must flow throughout the length of the
exposed pin to ensure a secure electrical and mechanical connection. Remove any
surplus solder that isn't needed for a secure connection.
Remove all flux and other
residues from the trace space between the signal side ground legs since any
flux present impacts performance.
In this article, you would have
got all the information about end-lunch connectors and how to connect them to
the circuit board. Continue navigating our website to learn about the SMA endlaunch connector and GPPO cable assembly.
