Antena Ring Sirkular dengan Kemampuan Penekanan Higher Order Mode

Rheyuniarto Sahlendar Asthan, Achmad Munir

Abstract


This paper presents the development of a circular ring-shaped antenna with ability to suppress higher order mode. An S-shaped is added into the ring in order to satisfy the goal of the antenna development. The upper and lower edges of the ring are excited differentially using two ports in order to have symmetrical radiation pattern. Each port is directly connected to a 50 Ω SMA connector using microstrip feeding line. The antenna is designed with an FR4 dielectric substrate with the dimension of 85.4 mm × 85.4 mm and intended to work at the center frequency of 0.9 GHz. The proposed antenna is compared with the conventional circular ring-shaped antenna to observe the antenna performances in term of higher order mode suppression. In addition, optimization is carried out by varying physical antenna parameters. The measurement result shows that circular ring-shaped antenna with S-shaped element can suppress the higher order mode frequency of 19.55 dB and work properly at the desired frequency of 0.9 GHz. The measured impedance bandwidth for the reflection coefficient (S11) below −10 dB is 251 MHz with fractional bandwidth (fBW) of 27.89%. The symmetrical radiation pattern in E-plane with maximum power density at the boresight is obtained at the frequency of 0.9 GHz and 1.94 GHz. The measured 3 dB beamwidths of 0.9 GHz and 1.94 GHz in E-plane are 99.4o and 100.5o, respectively.

Keywords


Antena Ring Sirkular; Higher Order Mode; Pencatuan Berbeda; Pola Radiasi Simetris

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References


R. Garg, P. Bhartia, I. Bahl, dan A. Ittipiboon, Microstrip Antenna Design Handbook, London: UK, Artech House, Inc., 2015.

S. Behera dan K.J. Vinoy, “Microstrip Square Ring Antenna for Dual Band Operation,” Progress In Electromagnetics Research (PIER), Vol. 93, hal. 41-56, 2009.

X. Hu, Y. Li, W. Chen, H. Tan, dan Y. Long, “Novel Dual-frequency Microstrip Antenna with Narrow Half-ring and Half-circular Patch,” IEEE Antennas Wirel. Propag. Lett., Vol. 12, hal. 3-6, Des. 2012.

J.Y. Sze, C.I.G. Hsu, dan S.C. Hsu, “Design of a Compact Dual-band Annular-ring Slot Antenna,” IEEE Antennas Wirel. Propag. Lett., Vol. 6, hal. 423-426, Sept. 2007.

N.A. Nguyen, R. Ahmad, Y.T. Im, Y.S. Shin, dan S.O. Park, “A Tshaped Wide-slot Harmonic Suppression Antenna,” IEEE Antennas Wirel. Propag. Lett., Vol. 6, hal. 647-650, Sept. 2007.

S. Biswas, D. Guha, dan C. Kumar, “Control of Higher Harmonics and Their Radiations in Microstrip Antennas Using Compact Defected Ground Structure,” IEEE Trans. Antennas Propag., Vol. 61, No. 6, hal. 3349-3353, Jun. 2013.

C.Y.D. Sim, M.H. Chang, dan B.Y. Chen, “Microstrip-fed Ring Slot Antenna Design with Wideband Harmonic Suppression,” IEEE Trans. Antennas Propag., Vol. 62, No. 9, hal. 4828-4832, Sept. 2014.

F.J. Huang, T.C. Yo, C.M. Lee, dan C.H. Luo, “Design of Circular Polarization Antenna with Harmonic Suppression for Rectenna Application,” IEEE Trans. Antennas Propag., Vol. 11, hal. 592-595, Mei 2012.

Y. Xu, S. Gong, dan T. Hong, “Circularly Polarized Slot Microstrip Antenna for Harmonic Suppression,” IEEE Antennas Wirel. Propag. Lett., Vol. 12, hal. 472-475, Apr. 2013.

Y.W. Liu, Y.J. Lu, dan P. Hsu, “Harmonic Suppressed Slot Loop Antenna Fed by Coplanar Waveguide,” IEEE Antennas Wirel. Propag. Lett., Vol. 13, hal. 1292-1295, Jul. 2014.

S. Liao, K.M. Shum, dan Q. Xue “Differentially Fed Planar Aperture Antenna with High Gain and Wide Bandwidth for Millimeter-Wave Application,” IEEE Trans.Antennas Propag., Vol. 63, No. 3, hal. 966-977, Mar. 2015.

Chairunnisa, R.S. Asthan, A.H. Wahyudi, dan A. Munir, “Differentially Fed Ring-shaped Planar Printed Antenna with Higher Order Mode Suppression,” Proc. 2018 Progress in Electromagnetics Research Symposium (PIERS-Toyama), 2018, hal. 1339-1342.

R.S. Asthan dan A. Munir, “Differentially Proximity Coupled Ring Printed Antenna Array for L-band SAR Application,” Proc. The 12th Int. Conf. on Telecommunication Systems, Services, and Applications, 2018, hal. 1-4.

C.A. Balanis, Modern Antenna Handbook, New York, USA: John Wiley & Sons, Inc., 2008.

D.M. Pozar, Microwave Engineering, 4th ed., New York, USA: John Wiley & Sons, Inc., 2012.

D.K. Misra, Radio-Frequency and Microwave Communication Circuits: Analysis and Design, New York, USA: John Wiley & Sons, Inc., 2001.




DOI: http://dx.doi.org/10.22146/jnteti.v8i4.538

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