1G0618-10

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Coupler Type:	Standard
Frequency:	8GHz ~ 12.4GHz
Coupling Factor:	10dB
Applications:	Military
Insertion Loss:	0.6dB
Power - Max:	50W
Isolation:	--
Return Loss:	14.5dB
Package / Case:	--
Supplier Device Package:	--

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RF Directional Coupler

RF directional couplers are devices used to tap off a small portion of the signal from a microwave or radiowave transmission line and send it to a separate test port. Couplers can also be used as transmit/receive switches in situations where a large amount of power must be switched between the transmit and receive paths. This type of coupler is a 1G0618-10, and it has an application field and a working principle that will be discussed in detail below.The 1G0618-10 is well-suited for use in point-to-point radio links, wireless local area networks (WLANs), base station transceivers, and other high-performance RF communications systems. Its unusually wide operating bandwidth, high directivity, and low-loss structure make it a valuable tool for controlling the signal level and adding flexibility to the system. The 1G0618-10 is also easy to interface and install; it can be mounted directly on a printed circuit board (PCB) with only two holes.In general, directional couplers are made from a combination of four line sections that are connected at right angles to form a “cross”. The primary line handles the input signal and is connected to an output port; the three other line sections are called “taps”. The two outer taps are used for detecting the amount of power being transmitted through the primary line and output port; these are known as the forward and reverse power detectors. The middle tap, meanwhile, is used to send a portion of the input signal to the test port; this is known as the “coupling factor”. The total input to the unit is typically matched to a 50 ohm system through the use of an diplexer. Meanwhile, the coupler works by dispersing a certain amount of power to the output port and sending off a portion of this power to the test port. This is done via a series of electromagnetic fields created by the coupler’s line sections and various transformers.The performance of the 1G0618-10 is quite good. Its coupling factor is 19 dB (±1.5 dB) over a wide operating bandwidth of 1.5 to 6.0 GHz. It also has a high directivity of over 20 dB in the operating range, along with a low insertion loss of maximum 0.7 (0.3) dB. Additionally, its isolation is better than 20 dB over a broad bandwidth, ensuring good signal integrity.In conclusion, the 1G0618-10 directional coupler is a high-performance component that provides a variety of features and benefits for applications such as point-to-point radio links, WLANs, and base station transceivers. Its wide operating bandwidth, high directivity, low-loss structure, and high isolation make it a valuable tool for controlling signal level and adding system flexibility.

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