EXH155SM

Return Loss:	--
Applications:	--
Height (Max):	10.500" (266.70mm)
Mounting Type:	Connector Mount
Ingress Protection:	--
Termination:	Connector, SMA Male
Features:	--
Power - Max:	50W
Gain:	--
Series:	EXH
VSWR:	2
Number of Bands:	1
Antenna Type:	Whip, Straight
Frequency Range:	150MHz ~ 160MHz
Frequency (Center/Band):	155MHz
Frequency Group:	VHF (f
Part Status:	Active
Packaging:	Bulk

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Introduction

EXH155SM is a RF antenna designed and developed by Shenzhen E-Star Electronics Co., Ltd. It is used for mainstream wireless applications, e.g., 3G WCDMA, GSM and LTE. It is a wideband antenna that supports 2GHz to 6GHz, and it also has extremely low PIM (Passive InterModulations) values of -150 dBc. In terms of radiation pattern, EXH155SM has omni-directional pattern around its main lobe, together with high gain to make it a good solution for wireless applications.

Application Field

EXH155SM is suitable for multiple wireless applications in various industries. For example, in the telecommunications industry, it is mainly used in multi-channel radios to provide overall coverage, particularly in places with strong radio interference signals. In the manufacturing industry, it can be used in industrial wireless equipment such as robots, AGV, production line machinery and factory automation equipment. It is also suitable for intelligent transportation systems, military systems, remote sensing systems and other applications.

Working Principle

EXH155SM is a micro-strip patch antenna structure, which consists of a radiating element, a ground plane and a feed. The radiating element is formed by a rectangular patch etched on the top surface of a PCB board, and the ground plane is at the bottom of the PCB. The feed is then connected to the radiating patch by a micro-strip line. When an electromagnetic wave impinges the antenna from the free space, the radiation field is generated and the entire system behaves as an equivalent dipole. The electric field of the incident wave is then modulated by the antenna to create an output wave.

Conclusion

EXH155SM RF antenna is a very good choice that offers performance and reliability for different wireless applications. Its wide frequency range and high gain contribute to its overall capability. With its extremely low Passive InterModulations (PIM) performance, it is suitable for environments with high radio interference signals, such as in the telecommunications and manufacturing industries. The working principle of the EXH155SM explains why it is effective in producing radiation field and modulating electric field. Hopefully this article has provided some useful insight into the application field and working principles of the EXH155SM RF antenna.

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