Journal ArticleDOI
A low-cost 8 to 26.5 GHz phased array antenna using a piezoelectric transducer controlled phase shifter
Tae-Yeoul Yun,Kai Chang +1 more
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TLDR
In this article, a multiline progressive PET phase shifter with a low perturbation loss of 2 dB and a total loss of less than 4 dB up to 40 GHz with a maximum phase shift of 480Abstract:
A new phased array antenna of wide bandwidth and good beam scanning angle has been developed using a low cost multiline phase shifter controlled by a piezoelectric transducer (PET) and a stripline fed Vivaldi antenna array. The multiline progressive PET phase shifter has a low perturbation loss of less than 2 dB and a total loss of less than 4 dB up to 40 GHz with a maximum phase shift of 480/spl deg/. The proposed phased array antenna consists of four E- or H-plane Vivaldi antennas, a PET phase shifter, and a power divider. The phased array shows a wide beam scanning capability of /spl plusmn/27/spl deg/ over a wide bandwidth from 8 to 26.5 GHz covering X, Ku, and K bands.read more
Citations
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Journal ArticleDOI
Recent advancements in microwave imaging plasma diagnostics
Hae-Woong Park,Chia-Chan Chang,B. H. Deng,Calvin Domier,A. J. H. Donné,Kazuo Kawahata,C. Liang,X. P. Liang,H. J. Lu,Neville C. Luhmann,Atsushi Mase,Hiroto Matsuura,E. Mazzucato,A. Miura,K. Mizuno,Tobin Munsat,Yoshio Nagayama,M. J. van de Pol,J. Wang,Z. G. Xia,W.-K. Zhang +20 more
TL;DR: In this article, a review of microwave and millimeter wave imaging diagnostics for toroidal devices such as tokamaks, spherical tori, and stellarators is presented.
Journal ArticleDOI
Novel low-cost beam-steering techniques
TL;DR: In this article, the authors compared several beam steering techniques without the use of conventional ferrite or solid-state phase shifters, including a microstrip patch antenna array fed by a dielectric image line (DIL) controlled by a reflector plate, a multimicrostrip line fed Vivaldi antenna array controlled by piezoelectric transducers (PETs) and a movable grating film fed by DIL.
Journal ArticleDOI
A new Millimeter-wave printed dipole phased array antenna using microstrip-fed coplanar stripline tee junctions
Young-Ho Suh,Kai Chang +1 more
TL;DR: In this article, a new millimeter-wave printed twin dipole phased array antenna is developed at Ka band using a new microstrip-fed CPS tee junction, which does not require any bonding wires, air bridges, or via holes.
Journal ArticleDOI
Compact, Low-Loss, Wideband, and High-Power Handling Phase Shifters With Piezoelectric Transducer-Controlled Metallic Perturber
TL;DR: In this article, a new type of compact meander line phase shifter with metallic perturber controlled by a piezoelectric transducer has been designed, fabricated, and tested.
Proceedings ArticleDOI
Ultra wideband 8 to 40 GHz beam scanning phased array using antipodal exponentially-tapered slot antennas
Sang-Gyu Kim,Kai Chang +1 more
TL;DR: In this article, an antipodal exponentially-tapered slot antenna (AETSA) was designed for H-plane scanning from 8 to 40 GHz, and a multi-line phase shifter controlled by a piezoelectric transducer (PET) was used for Hplane scanning.
References
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Book
Phased Array Antenna Handbook
TL;DR: Details of Element Pattern and Mutual Impedance Effects for Phased Arrays and Special Array Feeds for Limited Field of View and Wideband Arrays are presented.
Book
Phased Array Antennas
TL;DR: In this paper, the authors present an overview of the history of connected arrays and their applications in the field of pattern synthesis, and present a detailed analysis of the connections and their properties.
Journal ArticleDOI
Accurate model for effective dielectric constant of microstrip with validity up to millimetre-wave frequencies
M. Kirschning,R.H. Jansen +1 more
TL;DR: In this paper, a closed-form expression for the effective dielectric constant of single microstrip lines is presented for MIC and MMIC CAD programs as well as in the indirect measurement of substrate permittivities by resonance techniques.
Journal ArticleDOI
Voltage-controlled ferroelectric lens phased arrays
J. Rao,D.P. Patel,V. Krichevsky +2 more
TL;DR: In this paper, a voltage-controlled ferroelectric lens was proposed to reduce the number of phase shifters from (n/spl times/m) to (n+m).
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