ST0543-00-401-U

Antennas RF Overview

The ST0543-00-401-U is an active GPS ceramic patch antenna manufactured by Amphenol RF. It operates within the frequency range of 1.574 GHz to 1.576 GHz, centered on the standard L1 band at 1575.42 MHz with a tolerance of +/- 1 MHz. The device features a compact physical profile measuring 25.1 mm in length and 7.1 mm in height. It utilizes a 1.13 mm coaxial cable for signal transmission and connects via an I-PEX MHF1 interface.

Antennas RF Feature Summary

• Active GNSS reception capability integrated into a ceramic patch design
• Compact embedded form factor suitable for space-constrained applications
• Direct connection interface utilizing I-PEX MHF1 connector type

Antennas RF Applications

• Military and security navigation systems
• Internet of Things (IoT) positioning devices
• Medical equipment requiring location tracking
• Consumer routers and set-top boxes

Antennas RF Procurement Notes

Verify the specific revision status and manufacturing origin when sourcing this component. Confirm that the I-PEX MHF1 mating connector specifications align with your system design requirements. Ensure the active circuitry voltage and current consumption parameters are compatible with your power supply architecture before finalizing procurement orders.

Antennas RF Selection Notes

Select this model when a low-profile active GPS solution is required for embedded navigation. The 1.13 mm cable size offers flexibility for tight routing compared to standard RG174 alternatives. Consider the I-PEX MHF1 footprint constraints during PCB layout planning to ensure proper mechanical clearance and signal integrity for the active antenna element.

Antennas RF Part Context

This component belongs to the Amphenol RF internal embedded chip antenna portfolio, specifically designed for GNSS applications. It represents a specialized subset of RF antennas tailored for high-density electronic assemblies where traditional external whip or stick antennas cannot fit within the enclosure dimensions.

Antennas RF Replacement Considerations

Cross-reference with other Amphenol RF active GPS patch antennas sharing the same I-PEX MHF1 interface. Verify dimensional compatibility and gain specifications against alternative models such as the ST0543-00-N03-U to ensure equivalent performance in the target application environment.