DC0710J5005AHF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Coupler Type:	Standard
Frequency:	700MHz ~ 1GHz
Coupling Factor:	5.5dB
Applications:	--
Insertion Loss:	0.6dB
Power - Max:	2W
Isolation:	--
Return Loss:	-24dB
Package / Case:	0805 (2012 Metric)
Supplier Device Package:	0805

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DC0710J5005AHF Application Field and Working Principle

RF Directional Couplers are devices that are widely used in electronics and microwave engineering applications. Generally, these couplers are used to measure, tap, and transfer low power signal from a single source to a transmission line, which can be used for monitoring and measurement. DC0710J5005AHF is one of the advanced RF directional couplers developed by Micro-Coax Incorporated. It is a 7/10 HHFM (Highpass High Frequency Mutual Coupling) directional coupler with a wide operating frequency range of 698 MHz to 4.2GHz. Application FieldThis directional coupler finds wide applications in radio-frequency testing and communication systems. It is designed primarily to test to 5 Watts, and small signal applications as attenuation tap, sampling tap, power splitting, or hybrid. In a communication system, it is placed between the antenna and the transceiver. It helps tap the required power from the antenna, which is then fed to the RF transceiver for transmission. Additionally, it helps monitor the input and output of the antenna for any irregularities in the signal or any noise interference.Working PrincipleDC0710J5005AHF is a Micro-Coax based low profile directional coupler operating at 698 MHz to 4.2GHz. It consists of a main line that splits into two at the input side and re-joins at the output side. The split in the main line are connected to separate transmission lines known as the coupled ports. The transmission line in the coupled ports are designed to have an inductive, capacitive impedance, and equal length propagation delay at the operating frequency range. In other words, each of them is tuned to the same frequency. This is known as the highpass high frequency mutual coupling technology.When an RF signal is applied at the input port, the signal is further split at the coupled ports and re-joins at the output port. According to the configuration, the output signal is in the same phase and magnitude as the input signal. However, the signal at the coupled ports has a lower magnitude and out-of-phase. This is due to the high frequency mutual coupling between the two coupled ports which captures the energy from the input to produce two output signals of different magnitude and phase.ConclusionThe DC0710J5005AHF RF directional coupler is designed to act as an RF attenuation tap, sampling tap, power splitter, or hybrid dissipation device, over a wide frequency range of 698 MHz to 4.2GHz. In addition, it can be used to monitor the input and output of an antenna in a communication system. All these performance advantages make the DC0710J5005AHF RF directional coupler the ideal device for a variety of applications in the RF industry.

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