Judul Judul Judul Judul
Penulis: Folin Oktafiani dan Achmad Munir
Afiliasi : PPET‐LIPI dan STEI‐ ITB
Abstract
In this research, the Ground Penetrating Radar GPR antenna is designed by
improving the reference antenna’s dimensional performance, in order to ease the
detection process in the field. The Octahedral antenna is used as the reference
antenna. The method used was by optimizing each part of the antenna
dimension using 3D software which operates at frequency domain. The studies
done includes: minimizing the antenna diameter, determining the transition angle
on antenna’s arms, placing the resistors, determining the length of antenna’s arm
before the abrupt transition, searching the width of T strip antenna which gives
the optimum result, determining the resistor values, and the last is, determining
the distance between antenna’s arm and the ground plane. The simulation results
show that the 50 mm x50 mm dimension of antenna has the same characteristics
with the reference antenna, i.e return loss ≤ ‐10dB for frequency range 50 –
5000MHz. Keyword
: antenna; ground penetrating radar; dimension of antenna; return loss 5.
Judul :
Radar Cross Section Calibration Using a Trihedral Reflector For LIPI
Coastal
Surveillance Radar Penulis:
Sulistyaningsih dan Mashury Wahab Afiliasi
: PPET‐LIPI Abstract
A RCS calibrator is an object used to calibrate Radar Cross Section RCS reading of
a radar. For LIPI coastal surveillance radar, the object used for this purpose is a
trihedral. During filed experiments LIPI coastal surveillance radar using trihedral
reflector. The reflector can be used on a very wide frequency range. Front view of
the RCS calibrator using a trihedral with dimensions. The long and short sides are
91.5 cm and 64.5 cm long, respectively. Determination of the relevant dimension
for the RCS specifications.RCS calibration for the radar is a very important aspect
for the accurate estimation of target information.
Keywords: Radar Cross Section, RCS, trihedral reflector, calibration, radar.