A Broadband Planar Monopulse Antenna Array of C-Band

In this letter, a broadband planar monopulse antenna array of C-band for the application of monopulse radars is presented. A novel wideband monopulse comparator as the sum-difference feed network has been designed, and a multilayer 4 × 4 microstrip antenna array as the radiation part has been fabric...

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Veröffentlicht in:	IEEE antennas and wireless propagation letters 2009, Vol.8, p.1325-1328
Hauptverfasser:	Yu, Z.-W, Wang, G.-M, Zhang, C.-X
Format:	Artikel
Sprache:	eng
Schlagworte:	Antenna arrays Antenna feeds Antenna measurements Antennas Arrays Beams (radiation) Broadband Broadband antennas Microstrip antenna arrays Microstrip antennas Microstrip components Monopulse antenna Monopulse antennas monopulse comparator Multilayers Noise levels Nonhomogeneous media null depth Radar antennas Radar applications Wideband
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Beschreibung
Zusammenfassung:	In this letter, a broadband planar monopulse antenna array of C-band for the application of monopulse radars is presented. A novel wideband monopulse comparator as the sum-difference feed network has been designed, and a multilayer 4 × 4 microstrip antenna array as the radiation part has been fabricated. The measurement results demonstrate that the impedance bandwidth (VSWR ¿ 2) of the proposed monopulse antenna array is up to 28.2% and the null depth can reach -28 dB, which ranges from 5.05 to 6.675 GHz. At the same time, the peak sum beam gain is up to 18.4 dB. Compared to other monopulse antennas, the proposed monopulse antenna array exhibits excellent characteristics.
ISSN:	1536-1225 1548-5757
DOI:	10.1109/LAWP.2009.2038077