This paper presents the study on a slot-etched rectangular patch antenna directly fed by the 50 Ω semi miniature A-type (SMA) co-axial connector for wireless systems. The dual frequency behaviour by etching the slots on plane patch surface is studied experimentally. The proposed patch antenna has also achieved 28% compactness with a gain of 9.74 dB. Other antenna parameters such as antenna inpu...

-This paper depicts implementation of a radar system model and detection analysis by applying the Monte Carlo Simulation. For the radar system model development, we incorporated antenna geometry, transmit and receive signal model, antenna array and element pattern, thermal noise and clutter model. For detection analysis, we consider different scenarios such as fluctuating versus non fluctuating...

ground penetration radar (gpr) as a nondestructive method for identifying underground objects has been successfully applied to different fields of science such as geotechnical investigations, oil and gas exploration, geology, pipe detection and archeology investigations. metallic and nonmetallic objects can be identified by this method.  the depth of penetration is dictated by the gpr antennas....

Having combined the advantages of ground-based interferometric radar and Global Position System (GPS), a microwave radar with transponder for three-dimensional displacement monitoring method has been proposed. In this system, the active reflector ensures the long measurement distance at low antenna radiation power; the transponder provides the total solutions to antenna microwave leakage and mu...

Using simultaneous S and Ka band observations it is possible to retrieve a path integrated value of the water vapor content as well as cloud liquid water content values using the atmospheric and liquid water attenuation properties at the two frequencies. Recently the NCAR S-band dual polarimetric (S-Pol) radar has been upgraded to include simultaneous Ka-band radar measurements (Farquharson et ...

[1] This paper outlines an application of the incoherent scatter technique to the Irkutsk (Russia) VHF radar system, which has an antenna with a single, strictly linear polarization. Owing to ionospheric Faraday rotation, determination of wave plane polarization angle is essential to obtain electron density. We describe a new technique for electron density determination on a radar with single p...

This contribution points out the potential of radar sensors with high resolution in azimuth and range in traffic environment and addresses some aspects of their practical implementation with respect to system design, hardware and software. A prototypical vehicle-based instrumentation radar is presented, which performs on-line acquisition and real-time visualisation of radar images with an updat...

A low cost Stepped Frequency Continuous Wave sensor is proposed in this work as radar module for the long range monitoring of environmental scenarios subject to landslide risk. A radar configuration based on the adoption of a variable scanning antenna array is proposed for the accurate detection of land movements. Furthermore, a X-band radar module prototype is realized and tested to demonstrat...

The start-stop approximation is a standard tool for processing radar data in synthetic aperture imaging. It assumes that the antenna is motionless when a pulse is emitted and the scattered signal received, after which the antenna moves to its next sending/receiving position along the flight track. However, when the antenna is mounted on a satellite, as opposed to an airplane, its relatively hig...

Abstract ⎯ In this paper a printed dipole antenna and three slot antennas are designed to operate at 10 GHz for use in radar systems. A parametric study of each antenna and comparison between their radiation properties including return loss, bandwidth, directivity, efficiency and radiation patterns for 6-element linear array are introduced. Slot antennas show wider bandwidth, less coupling and ...