Waveguide to Coaxial Adapter 50-75GHz WR15 to 1.0mm-Femle RM-WCA15

Short Description:

The RM-WCA15 are right angle (90°) waveguide to coaxial adapters that operate the frequency range of 50-75GHz. Precision machining provides superior performance and is commonly used in high-end test and measurement, satellite communication and radar systems.

Product Detail

ANTENNA KNOWLEDGE

Product Tags

Specifications

RM-WCA15
Item	Specification	Units
Frequency Range	50-75	GHz
Waveguide	WR15	dBi
VSWR	1.2 Typ.
Insertion Loss	0.8 Typ.	dB
Flange	FUGP620(UG-385)
Connector	1.0mm Female
Impedance	50	Ohm
Material	Cu
Size (LWH)	30.019.125.9(±5)	mm
Net Weight	0.030	Kg
Power Handling (cw)	3	w
Power Handling (peak)	0.005	kw
Operating Temp.	-55°C - 85°C	°C

Previous: Waveguide to Coaxial Adapter 75-110GHz WR10 to 1.0mm-Femle RM-WCA10

Next: Circularly Polarized Horn Antenna 20dBi Typ. Gain, 18-26.5 GHz Frequency Range RM-CPHA1826-20

A waveguide-to-coaxial adapter is a critical passive microwave component designed for efficient signal transition and transmission between a rectangular/circular waveguide and a coaxial transmission line. It is not an antenna itself, but an essential interconnection component within antenna systems, particularly those fed by waveguides.

Its typical structure involves extending the inner conductor of the coaxial line a short distance (forming a probe) perpendicularly into the broad wall of the waveguide. This probe acts as a radiating element, exciting the desired electromagnetic field mode (typically the TE10 mode) inside the waveguide. Through precise design of the probe’s insertion depth, position, and end structure, impedance matching between the waveguide and coaxial line is achieved, minimizing signal reflection.

The key advantages of this component are its ability to provide a low-loss, high-power-capacity connection, combining the convenience of coaxial equipment with the low-loss benefits of waveguides. Its main drawback is that its operational bandwidth is limited by the matching structure and is generally narrower than that of broadband coaxial lines. It is widely used to connect microwave signal sources, measurement instruments, and waveguide-based antenna systems.

Coaxial Adapter