Product overview
Description
The STDES-ST87M01IGN is a reference design for the ST87M01 NB‑IoT + GNSS module, implemented on a 2‑layer FR4 PCB (90 mm x 60 mm, 1.6 mm).
It simplifies the development of NB‑IoT/GNSS systems by using compact IGNION chip antennas and a layout already optimized for RF performance.
The STDES-ST87M01IGN integrates the ST87M01 module, the NN03‑310 chip antenna for NB‑IoT and the NN03‑320 chip antenna for GNSS, together with their dedicated RF matching networks optimized for different NB‑IoT band groupings.
The layout has been carefully engineered to ensure signal integrity and robust RF behavior, thanks to a wide ground plane, 50 Ω CPWG transmission lines, antenna clearance zones and keepout areas, and close placement of matching components to the antenna feeds.
The STDES-ST87M01IGN includes all necessary functions for fast evaluation: USB or battery powering, low‑noise voltage regulation, USB‑to‑UART interface, SIM holder, reset button, status LEDs, and accessible test points.
The RF behavior has been characterized both in passive mode (return loss, efficiency, maximum gain, 2D/3D radiation patterns) and in active mode through total radiated power (TRP) measurements, showing good alignment with expected values across supported bands.
The NN03‑310 antenna enables operation in the 2.4 GHz Wi‑Fi band for Wi‑Fi scanning (a feature of the ST87M01 module). This allows the board to detect nearby Wi‑Fi access points and support coarse positioning (for example, when GNSS is unavailable), making the STDES-ST87M01IGN an ideal platform to accelerate the design of compact, multiband, high‑efficiency IoT applications with integrated GNSS/Wi‑Fi assisted positioning.
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All features
- Integration of IGNION NN03‑310 (NB‑IoT) and NN03‑320 (GNSS) chip antennas
- Three dedicated matching networks supporting multiple NB‑IoT band combinations (700‑960 MHz, 1.7‑2.2 GHz)
- Layout optimized with antenna clearance and keepout areas to maximize efficiency and radiation performance
- On‑board USB to UART converter for ST87M01 control via AT commands over USB
- Selectable USB or 3 V battery supply, with low‑noise LDO regulator
- SIM holder, reset push button, status/activity LEDs, and test points for easy debug
- RF performance validated in passive mode (S11, efficiency, gain, 2D/3D radiation patterns) and active mode (TRP) across multiple bands
- The NN03 antenna also supports the 2.4 GHz Wi‑Fi band, enabling the ST87M01's built-in Wi-Fi scanning
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Ultra-compact NB-IoT module with optional GNSS, Wi-Fi positioning, Wireless M-BUS & embedded SIM.
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All resources
| Resource title | Version | Latest update |
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Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | |||
|---|---|---|---|---|---|
| ZIP | 1.0 | 25 Feb 2026 | 25 Feb 2026 |
Bill of Materials (1)
| Resource title | Version | Latest update | |||
|---|---|---|---|---|---|
| 1.0 | 25 Feb 2026 | 25 Feb 2026 |
Schematic Pack (1)
| Resource title | Version | Latest update | |||
|---|---|---|---|---|---|
| 1.0 | 25 Feb 2026 | 25 Feb 2026 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|---|
| STDES-ST87M01IGN | Active | CARD | Industrial | - | Yes | - | - | |
STDES-ST87M01IGN
Package:
CARDMaterial Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STDES-ST87M01IGN | | | distributors No availability of distributors reported, please contact our sales office |
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STDES-ST87M01IGN Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors