Abstract.
Two-dimensional periodic scanning leaky wave antenna arrays are studied, which
consist of rectangular dielectric-filled waveguides with reflection-cancelling
transverse slot pairs. The radiation characteristics of infinite and finite-size
arrays are computed in the regime of uniform excitation of all inputs with a
linear phase shift. The width of the frequency-phase scanning sector is
investigated depending on the dielectric permittivity of the material filling
the waveguides. Studies have shown that the considered antenna arrays have a
relatively wide single-beam scan sector.
In the frequency range 8.75 - 10.75 GHz the elevation scanning capabilities for
the arrays with the filling materials ε = 2.25 and ε = 9 are characterized by
the angular sectors of 30° and 71°, respectively. The azimuth scanning is
determined by the beam tilt by 45° - 59° at the phase shift of 120° (ε = 2.25)
and by 44° - 60° at the phase shift of 60° (ε = 9), in the same frequency range.
It is also shown that at a given frequency and with a change in the phase shift
the beam scans along the surface of an almost circular cone with a constant
elevation angle at its vertex measured relative to the waveguide axes. It is
obtained that the angles of radiation for the simulated finite-size arrays and
the corresponding infinite arrays are practically same.
Keywords. Leaky-wave
antennas, slotted waveguide arrays, dielectric-filled waveguides,
frequency-phase scanning.
References
1. Walter C. H. Traveling wave antennas.
McGraw-Hill. 1965. 429 p.
2. Kaloshin V.
A. Antenni millimetrovih voln [Millimeter-wave antennas]. Zarubezhnaya
radioelektronika. 1984, No. 11, pp. 97-106. (In Russian)
3. Manuilov M.,
Lerer V., Sinyavsky G. Metodi rascheta i novie primenenia
volnovodno-schelevih antennih reshetok [Methods of analysis and new
applications of slotted-waveguide antenna arrays]. Uspehi sovremennoi radioelectroniki.
2007, No. 5, pp. 3-28. (In Russian)
4. Bankov S. Antennie
reshetki s posledovatelnim pitaniem [Series-fed antenna arrays]. Moscow,
Phismatlit Publ. 2013. 414 p. (In Russian)
5. Bankov S. E.,
Kalinichev V. I., Kaloshin V. A., Frolova E. V. Neperiodicheskie lineinie i
planarnie reshetki vitekayuschei volni [Non-periodic linear and planar
leaky-wave antenna arrays]. Trudy 3 Vserossiiskoi Mikrovolnovoi konferentsii
[Proc. of 3-d All-Russian Microwave Conference]. Moscow, Kotel’nikov IRE of RAS, 25-27 Nov 2015,
pp. 207-211. (In Russian)
6. Cullens E. D.,
Ranzani L., Vanhille K. J., Grossman E. N., Ehsan N., and Popovic Z. Micro-Fabricated
130–180 GHz Frequency Scanning Waveguide Arrays. IEEE Trans. Antennas and
Propagation, 2012, Vol. 60, No. 8, pp. 3647-3653.
7. Patent US 8,362,948
B2. Kolinko V., Sexton C., Bishop G., Lovberg J. Long Range Millimeter Wave
Surface Imaging Radar System. Date of patent Jan. 29, 2013.
8. Murano K.,
Watanabe I., Kasamatsu A., Suzuki S., Asada M.,
Withayachumnankul W., Tanaka T.,
and Monnai Y. Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam
Steering. IEEE Trans. Terahertz Science and Technology, 2017, Vol. 7, No.
1, pp. 60-69.
9.
Kalinichev V. I., Babaskin A. A. Frequency
scanning of a leaky wave antenna on a rectangular dielectric-filled waveguide.
Zhurnal Radioelektroniki -
Journal of Radio Electronics, 2016, No. 8. Available
at
http://jre.cplire.ru/jre/aug16/2/text.pdf. (In Russian)
10. Ettorre M.,
Neto A., Gerini G., and Maci S. Leaky-Wave Slot Array Antenna Fed by a
Dual Reflector System. IEEE Trans. Antennas and Propagation, 2008, Vol.
56, No. 10, pp. 3143-3149.
11. Cheng Y. J., Hong W., and Wu K. Millimeter-Wave
Substrate Integrated Waveguide Multibeam Antenna Based on the Parabolic
Reflector Principle. IEEE Trans. Antennas and Propagation, 2008, Vol.
56, No. 9, pp. 3055-3058.
12. Cheng Y. J., et al. Substrate Integrated
Waveguide (SIW) Rotman Lens and Its Ka-Band Multibeam Array Antenna
Applications. IEEE Trans. Antennas and
Propagation, 2008,
Vol. 56, No. 8, pp. 2504-2513.
13.
Chen P., Hong W., Kuai Zh., Xu J., Wang H., Chen J., Tang H., Zhou J., and Wu
K. A Multibeam Antenna Based on Substrate Integrated Waveguide Technology for
MIMO Wireless Communications. IEEE Trans. Antennas and Propagation,
2009, Vol. 57, No. 6, pp.1813-1821.
14.
Gatti R. V., Sorrentino R., Dionigi M. Fast and accurate analysis of scanning slotted
waveguide arrays.
32nd European Microwave Conf.,
2002, pp. 1-4. DOI:
10.1109/EUMA.2002.339452
15.
Evstropov G. A. Antenni s elektricheskim kachaniem lucha [Electric
scanning antennas]. Antenni. 2009, No. 7, pp. 30-34. (In Russian)
16.
Ettorre M., Sauleau R., and Le Coq L. Multi-Beam Multi-Layer Leaky-Wave
SIW Pillbox Antenna for Millimeter-Wave Applications. IEEE Trans. Antennas
and Propagation, 2011, Vol. 59, No. 4, pp. 1093-1100.
17.
Schreiber E., Peichl M., Jirousek M., Suess H. VESAS: a novel concept for
fully-electronic passive MW imaging. Proceedings of SPIE Defense, Security,
and Sensing, 2013, Vol. 8715 87150J-1.
18. Bankov S. E., Kaloshin V. A.,
Frolova E. V. Study of the frequency-phase scanning characteristics for a
focused slotted waveguide array. Zhurnal Radioelektroniki - Journal of Radio
Electronics, 2017, No. 5. Available at
http://jre.cplire.ru/jre/may17/9/text.pdf (In Russian)
19.
Kalinichev
V. I., Babaskin A. A. Analysis
of a dual-periodic
slotted waveguide array with
frequency-phase beam scanning capabilities. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2016, No. 2. Available at
http://jre.cplire.ru/jre/feb16/3/text.pdf . (In Russian)
20.
Kalinichev V. I., Babaskin A. A.
Study of the frequency scanning for a slotted waveguide antenna array with a
constant phase shift between the waveguides. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2017,
No.1. Available at
http://jre.cplire.ru/jre/jan17/7/text.pdf.
(In Russian)
21. Kalinichev
V. I., Kaloshin V. A., Frolova E. V. Slotted-Waveguide
Antenna Arrays with Frequency-Phase Scanning. Proc. of International Scientific
Conference “Radiation and Scattering of Electromagnetic Waves RSEMW 2017”.
Gelendzhik, Russia, 26-30 June 2017.