PMM LP-02 Log-Periodic Antenna
| Brand | PMM |
|---|---|
| Origin | Italy |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | LP-02 |
| Pricing | Available Upon Request |
| Frequency Range | 200–3000 MHz |
Overview
The PMM LP-02 Log-Periodic Antenna is a precision-engineered broadband directional antenna designed for electromagnetic field (EMF) measurement, radiated emissions testing, and electromagnetic compatibility (EMC) pre-compliance and compliance validation in accordance with international standards. Based on the log-periodic dipole array (LPDA) principle, the antenna exhibits consistent impedance, radiation pattern, and gain characteristics across its entire operational bandwidth—enabling reliable amplitude and polarization response without mechanical retuning. Its self-similar geometric structure ensures frequency-independent performance, making it particularly suitable for swept-frequency measurements in semi-anechoic chambers (SACs), open-area test sites (OATS), and on-site RF surveys. The LP-02 is optimized for use with calibrated EMI receivers, spectrum analyzers, and RF field probes compliant with CISPR 16-1-4, ANSI C63.4, and IEC 61000-4-3.
Key Features
- Broadband operation from 200 MHz to 3000 MHz with continuous, monotonic gain response (typical peak gain: 6–8 dBi, depending on frequency)
- Passive, balun-integrated design with 50 Ω nominal input impedance and N-type female connector for low-reflection coupling
- High front-to-back ratio (>20 dB across 500–2500 MHz), minimizing sensitivity to rearward interference during directional scanning
- Lightweight aluminum alloy construction with UV-stabilized dielectric support booms—engineered for long-term dimensional stability under ambient thermal cycling
- No active components or power requirements; fully compatible with traceable calibration per ISO/IEC 17025-accredited laboratories
- Mounting interface compliant with standard tripod and mast adapters (3/8″-16 UNC thread)
Sample Compatibility & Compliance
The LP-02 is routinely deployed in standardized EMC test configurations per CISPR 32, CISPR 25, EN 55032, EN 55025, and FCC Part 15/18. Its well-characterized phase center and stable group delay support accurate field strength reconstruction in both radiated emission and immunity testing setups. When used with a calibrated receiving system—including an EMI receiver traceably calibrated to NIST or PTB reference standards—the antenna contributes to measurement uncertainty budgets defined in ISO/IEC 17025:2017 Annex A.3. It satisfies the antenna performance criteria outlined in CISPR 16-1-4:2023 (Clause 6.3) for broadband antennas operating above 200 MHz, including VSWR ≤ 2.0 over ≥90% of the band and pattern symmetry within ±1.5 dB.
Software & Data Management
While the LP-02 is a passive transducer and requires no embedded firmware or driver software, it integrates seamlessly into automated EMC test systems via industry-standard instrumentation control protocols (SCPI over LAN/GPIB/USB). When paired with PMM’s EHP-200A electric field probe or the 8053 EMI receiver, antenna factor (AF) and correction data are automatically loaded from NIST-traceable calibration certificates stored in XML or CSV format. System-level software such as EMCO’s EMCWare, Keysight PathWave EDA, or TESEQ’s EMC Studio supports AF interpolation, cable loss compensation, and margin analysis—all aligned with FDA 21 CFR Part 11 audit trail requirements when configured with electronic signatures and role-based access control.
Applications
- Radiated emissions testing of IT equipment, industrial controls, automotive ECUs, and wireless IoT devices
- Site attenuation verification (SAV) and normalized site attenuation (NSA) measurements per ANSI C63.4-2014
- RF field mapping for occupational exposure assessment (ICNIRP, IEEE C95.1, EU Directive 2013/35/EU)
- Pre-scan diagnostics prior to formal certification at accredited test labs (e.g., TÜV SÜD, UL, SGS, CETECOM)
- Directional signal source localization and interference hunting in complex RF environments
- Calibration transfer between primary and secondary standards in metrology institutes
FAQ
Is the LP-02 supplied with a calibration certificate?
Yes—each unit ships with a manufacturer-provided calibration report traceable to national metrology institutes (NMIs), covering amplitude response, antenna factor, and VSWR across the full 200–3000 MHz range.
Can the LP-02 be used for immunity testing as a transmitting antenna?
It is not recommended for high-power transmission due to lack of power-handling certification; however, low-level conducted immunity simulations (≤1 V/m) may be performed with appropriate amplification and safety interlocks.
What is the typical measurement uncertainty contribution of the LP-02?
When used with a calibrated receiver and corrected for cable loss and environmental reflections, the antenna-related expanded uncertainty (k=2) is typically ≤ ±0.8 dB across 500–2000 MHz, per CISPR 16-4-2 guidance.
Does the LP-02 require periodic recalibration?
Yes—annual recalibration is recommended to maintain traceability and ensure conformance with ISO/IEC 17025 quality management requirements for accredited testing facilities.
