c1.gif (954 bytes) "JOURNAL OF RADIOELECTRONICS" N 6, 1999

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MULTI-BAND ELECTRONICALLY SCANNED ANTENNAS OF CENTIMETER AND MILLIMETER WAVE RANGES

Nikolai A. Bei

Moscow State Technical University named after Bauman,
5, 2-Baumanskaya Str., Moscow 107005, Russia

 Foundations and principles of radio lenses constructing of centimeter and millimeter wave ranges with controlled refraction index, combining the quality of phased array antennas with optical devices are stated. Possibilities of the electronically scanning with wide-angle sector and high gain are maintained. Construction principles of scanning antennas with controlled lenses, combining the quality of phased array antennas with optical devices, are stated. Possibilities of electronically scanning with broad angle sector and high gain are maintained. Some examples of construction of antennas millimeter range of waves are listed here.

In millimeter wave range research results carried out with purpose of antenna creation satistuing to next requaries are represented:
1. Frequency range        from fmin=50GHz to fmax=96GHz
2. Scanning sector:
               for fmin           60 x  60
                                          for fmax         30 x 30

3. Bandwidth (ferrit modul)                     15%
4. Differential phase shifts (ferrit modul)     0 .360
5. Dimensions of the aperture, cm2              at any size
6. Input power (average)                              10,0 W/cm2
7. Input power (peak)                              300,0 W/cm2
8. Switching time of phase                              10,0 m s
9. Average control energy                              (30,0 40,0) m J/ cm2

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