LDM181G9310CC001

Series:	LDM18
Packaging:	Tape & Reel (TR)
Part Status:	Active
Frequency Range:	1.71GHz ~ 2.155GHz
Impedance - Unbalanced/Balanced:	50 / 100 Ohm
Phase Difference:	--
Insertion Loss (Max):	0.95dB
Return Loss (Min):	--
Package / Case:	0603 (1608 Metric), 6 PC Pad
Mounting Type:	Surface Mount

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Introduction

A Balun, or balanced to unbalanced converter, is a passive device which is used to match impedance between two systems with unequal impedances. The LDM181G9310CC001 is a type of balun which is designed to match an antenna to a radio connection, allowing high power antenna signal transmission over a medium of low-impedance microstrip lines.

Application Field

The LDM181G9310CC001 balun is used for efficient radio transmission in various applications such as cellular base stations, Point-to-Multi Point or WLL-Fixed Service applications. It is also suitable for digital TV reception in cable and satellite systems. This balun is particularly designed to provide ideal impedance matching between a high-power antenna and the low-impedance microstrip line transmission media.

Working Principle

The working principle of any balun essentially consists of two inductors in series, both of which are connected to the antenna and radio circuit at either end. The magnetic field generated by the currents in the inductors produces the signal transference. The high-power antenna is connected to one of the inductors, while the other is connected to the low-impedance microstrip line transmission media. In the LDM181G9310CC001, the two inductors work together to maintain a balanced current on both lines of the antenna which produces a more efficient signal transmission and further reduces the amount of noise and interference on the signal.

Advantages

One of the main advantages of the LDM181G9310CC001 balun is its low insertion loss. This is due to the symmetrical current produced in each line by the inductors, resulting in a more efficient signal transmission. The balun also has very low frequency-dependent phase and amplitude variations, making it ideal for matching an antenna to a low-impedance microstrip line.This balun is also designed to be very robust, making it suitable for long-term and highly exposed applications. It has the ability to withstand harsh environmental conditions such as high temperature, humidity, wind, snow, and other extreme weather conditions. It also has a low weight, making it easy to install and transport.

Conclusion

The LDM181G9310CC001 balun is an excellent device for efficient radio signal transmission in various applications. It provides low insertion loss, low frequency-dependent phase and amplitude variations, and exceptional robustness which makes it suitable for long-term and highly exposed applications. This balun is designed to match an antenna to a low-impedance microstrip line, allowing efficient signal transmission over the transmission media.

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