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The paper presents the computer simulation and the measurement results of the realized strip horn antenna intended for operation at 9–15 GHz range. The antenna is fabricated with 20 mm wide and 1 mm thick aluminum strips. The arms of the horn are 60 mm long while the aperture angle is 60. The excitation is performed through the SMA connector pin which is placed at the quarter wavelength distance from the short-circuited strip.

This paper presents electromagnetic simulation software package WIPL-D microwave and design, passive PIN diode limiter for higher RF power in combination of waveguide and print techniques. The Limiter is designed for use at X-range of protection low noise semiconductor amplifiers and includes two spatially separated PIN diodes.

Modern equipment for azimuth measurements of radiant source antenna perform pulse measurements. This paper presents pulse measurements on application-specific portable wideband microwave detector that is capable to measure azimuth, received signal power level, frequency, and pulse parameters. The considered power level is form −80 up to −20dBm, and frequency band from 11 up to 15GHz with resolution of 100MHz. Duration of pulses is form 500ns up to 10ms with no limits in pause time. This azimuth and pulse detector is developed for portable, small size measuring equipment that performs determination of beaming antenna parameters.

The paper presents simulated and measured results of the UHF RFID antenna realized with dipole matched to a CPS (coplanar stripline) and inductively coupled with small rectangular loop. Such design of the antenna enables easy achieving and controlling high values of the inductive reactance that is necessary for obtaining good matching of antenna to ASIC (Application Specific Integrated Circuit) chip. The antenna is characterized by simple and robust design which results in low-cost realization.