ALPHA4A/5M/MCXM/S/S/26

VSWR:	1.5
Applications:	GPS
Height (Max):	0.512" (13.00mm)
Mounting Type:	Adhesive
Ingress Protection:	--
Termination:	Connector, MMCX Male
Features:	--
Gain:	26dB
Return Loss:	--
Series:	ALPHA 4A
Number of Bands:	1
Antenna Type:	Module
Frequency Range:	--
Frequency (Center/Band):	1.575GHz
Frequency Group:	UHF (1 GHz ~ 2 GHz)
Part Status:	Active
Packaging:	Bulk

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Introduction

This article discusses the ALPHA4A/5M/MCXM/S/S/26, a type of RF antenna. It covers the application field and working principle of this antenna.

Application Field

The ALPHA4A/5M/MCXM/S/S/26 is a Wideband Antenna designed for use in scenarios where a large frequency range is needed. Its dual-polarization antenna design and wide frequency range of 5–4200 MHz makes it an attractive and versatile option for a wide range of applications, including UHF data broadcasting, digital TV broadcasting, Integrated Services Digital Broadcasting (ISDB-T) and Digital Audio Broadcast (DAB). Additionally, its coaxial connection and low-profile form factor make it a great choice for smart home or automotive installations where aesthetics are a primary concern.

Working Principle

ALPHA4A/5M/MCXM/S/S/26 uses a dual-polarization design in which each polarization element operates independently with two separate connections. This enables the antenna to provide signal reception in two horizontal and two vertical patterns. The dual-polarization antenna design of this antenna is enhanced by its wide frequency range, which makes it a very adaptable antenna. Its wide frequency range also ensures that it can receive signals from multiple locations and multiple devices simultaneously. The antenna consists of four sides, each of which is constructed from metal strips that are curved into an ellipse. This metal strip construction acts as a Faraday shield, which reduces interference from signals outside the frequency range that the antenna is designed to receive. Additionally, the antenna has an integrated radio-frequency choke, which accumulates radio-frequency energy that is not in the antenna’s receiving range and stores it in a bypass capacitor. This ensures that signals outside the desired range are blocked, allowing the antenna to provide clear reception of desired signals.

Conclusion

The ALPHA4A/5M/MCXM/S/S/26 is an RF antenna designed for wideband applications. Its dual-polarization antenna design, wide frequency range and integrated RF choke make it an attractive and adaptable solution for applications such as UHF data broadcasting, digital TV broadcasting, ISDB-T and DAB. The antenna’s shield construction and RF choke also provide additional protection from interference from signals outside of the desired frequency range.

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