Rohde et Schwarz HZ-15

R&S®HZ-15 E and H near-field probe set

Key facts

• Special, electrically shielded magnetic field probes
• Probe tips adapted to near-field measurement
• High-resolution measurements
• Easy-to-determine magnetic field orientation
• Easy operation and handling

Before you perform a near-field analysis,you first need to know how the E and H fields are distributed. The five probes from the Probe Set R&S^®HZ‑15 are well suited for this purpose. All near‑field probes are designed for ease of use, and are ideal for measuring high- frequency fields starting at 30 MHz on printed boards and on components. The magnetic field probes include special electrically shielded probe tips. The various probe tip shapes are designed for tasks in near-field measurements.
The upper limit frequency of a probe is determined by the size and design of the probe tip. All probes are passive and are 50 Ohm input of a test receiver or spectrum analyzer. The Preamplifier R&S^®HZ-16 increases sensitivity.

Circuit designers usually perform nearfield measurements on a module to find out whether electromagnetic disturbance exceeds thresholds in line with EMC standards. Based on field strength measurements, the designer already knows several critical frequencies of the device or module under test. A practical way to reduce EMI is to analyze near fields, locate the sources and come up with targeted countermeasures.

Comes with 2 E field probes and 3 H field probes:

E field probe RS E 02

30MHz - 1.5GHz.
The surfaces of bus structures, large components or supply structures emit E fields that can cause EMI.
The bottom of the RS E 02 probe detects these fields on an area measuring approx. 2 cm × 5 cm.

E field probe RS E 10

30MHz - 3GHz.
The narrow electrode of the RS E 10 probe can select a single conductor track from a bundle of conductor tracks 0.2 mm in width.
The light color of the probe tip stands out in sharp contrast to the dark green of the printed board.

H field probe RS H 400-1

30MHz - 1GHz.
Owing to its large diameter (approx. 25 mm), the RS H 400-1 probe for H field is extremely sensitive and provides the average of the magnetic field strength in the loop area of the probe.
You can use the probe at a 10 cm distance around modules and instruments.

H field probe RS H 50-1

30MHz - 2GHz.
The RS H 50-1 (diameter approx. 10 mm) is higher in resolution and lower in sensitivity than the RS H 400-1.
It is suitable for performing measurements at a smaller distance of up to approx. 3 cm.
In this range, you can determine field distribution and field orientation even more precisely.

H field probe RS H 2.5-2

30MHz - 3GHz.
The RS H 2.5-2 H field probe can be used to selectively detect the current spectrum in conductor tracks and component leads such as on capacitors or ICs.
The probe tip has a magnetically active groove of approx. 0.5 mm in width.