scholarly journals Investigation on Harmonic Tuning for Active Ku-Band Rectangular Dielectric Resonator Antennas

2008 ◽  
Vol 2008 ◽  
pp. 1-6 ◽  
Author(s):  
Anda Guraliuc ◽  
Giuliano Manara ◽  
Paolo Nepa ◽  
Giuseppe Pelosi ◽  
Stefano Selleri
Keyword(s):  
Dielectric Resonator ◽  
Shape Factor ◽  
Phased Array ◽  
Fine Tuning ◽  
Dielectric Resonator Antenna ◽  
Dielectric Resonator Antennas ◽  
Power Added Efficiency ◽  
Radiating Element ◽  
Integrated Antenna ◽  
Ku Band

A slot-coupled rectangular dielectric resonator antenna (DRA) operating in the 14–14.5 GHz frequency band is investigated as a possible radiating element for an active integrated antenna of a transmitting phased array. The effectiveness of the resonator shape factor on achieving harmonic tuning is addressed. Simulation results show that the DRA shape factor can be used to provide a fine tuning of the DRA input impedance both at the fundamental frequency and its first harmonics, so synthesizing the proper load for the optimization of the microwave amplifier power-added efficiency (PAE).

scholarly journals Cylindrical Dielectric Resonator Antennas with Harmonic Control as an Active Antenna Radiator

2009 ◽  
Vol 2009 ◽  
pp. 1-7
Author(s):  
L. Lucci ◽  
G. Manara ◽  
P. Nepa ◽  
G. Pelosi ◽  
S. Selleri
Keyword(s):  
Dielectric Resonator ◽  
Shape Factor ◽  
Satellite Communications ◽  
Reactive Elements ◽  
Active Antenna ◽  
Dielectric Resonator Antenna ◽  
Feed System ◽  
Dielectric Resonator Antennas ◽  
Harmonic Control ◽  
Integrated Antenna

A cylindrical dielectric resonator antenna is proposed as a radiator for an active integrated antenna. Harmonic tuning, which is the key step in designing active antenna radiators, is achieved via a combination of shape factor control over the resonator and insertion of reactive elements in the feed system. Numerical simulations are carried out in a finite elements framework and a layout for the complete antenna is proposed, aimed at compactness for subsequent utilization of the radiator as an element in an active array for satellite communications.

scholarly journals Bio-Inspired Dielectric Resonator Antenna for Wideband Sub-6 GHz Range

2020 ◽  
Vol 10 (24) ◽  
pp. 8826
Author(s):  
Luigi Melchiorre ◽  
Ilaria Marasco ◽  
Giovanni Niro ◽  
Vito Basile ◽  
Valeria Marrocco ◽  
...  
Keyword(s):  
Dielectric Resonator ◽  
Technological Development ◽  
High Gain ◽  
Geometrical Parameters ◽  
Dielectric Resonator Antenna ◽  
Frequency Range ◽  
Dielectric Resonator Antennas ◽  
Antenna Performance ◽  
Rapid Production ◽  
Manufacturing Technologies

Through the years, inspiration from nature has taken the lead for technological development and improvement. This concept firmly applies to the design of the antennas, whose performances receive a relevant boost due to the implementation of bio-inspired geometries. In particular, this idea holds in the present scenario, where antennas working in the higher frequency range (5G and mm-wave), require wide bandwidth and high gain; nonetheless, ease of fabrication and rapid production still have their importance. To this aim, polymer-based 3D antennas, such as Dielectric Resonator Antennas (DRAs) have been considered as suitable for fulfilling antenna performance and fabrication requirements. Differently from numerous works related to planar-metal-based antenna development, bio-inspired DRAs for 5G and mm-wave applications are at their beginning. In this scenario, the present paper proposes the analysis and optimization of a bio-inspired Spiral shell DRA (SsDRA) implemented by means of Gielis’ superformula, with the goal of boosting the antenna bandwidth. The optimized SsDRA geometrical parameters were also determined and discussed based on its fabrication feasibility exploiting Additive Manufacturing technologies. The results proved that the SsDRA provides relevant bandwidth, about 2 GHz wide, and satisfactory gain (3.7 dBi and 5 dBi, respectively) at two different frequencies, 3.5 GHz and 5.5 GHz.

scholarly journals Development of Enabling Technologies for Ku-Band Airborne SATCOM Phased-Arrays

Electronics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 488
Author(s):  
Alfredo Catalani ◽  
Giovanni Toso ◽  
Piero Angeletti ◽  
Mario Albertini ◽  
Pasquale Russo
Keyword(s):  
Phased Array ◽  
Phased Arrays ◽  
Satellite Communications ◽  
Antenna System ◽  
Array Antenna ◽  
Commercial Product ◽  
Dual Polarization ◽  
Phased Array Antenna ◽  
Radiating Element ◽  
Ku Band

In the paper the development of a fully electronic transmit-receive phased-array antenna system in Ku-band for aircraft communications via satellite is presented. Particular emphasis has been placed in the improvement of the following key elements: a dual-polarization self-diplexing radiating element, a transmit/receive active module with full polarization agility based on a digital vector modulator and a SiGe multinode MMIC. The optimized antenna elements enable a significant improvement towards the realization of a future affordable commercial product for satellite communications.

scholarly journals Single Feed Aperture-Coupled Wideband Dielectric Resonator Antenna with Circular Polarization for Ku-Band Applications

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Joshua M. Patin ◽  
Satish K. Sharma
Keyword(s):  
Circular Polarization ◽  
Dielectric Resonator ◽  
Ground Plane ◽  
Axial Ratio ◽  
Resonant Mode ◽  
Center Frequency ◽  
Back Side ◽  
Dielectric Resonator Antenna ◽  
Band Frequency ◽  
Ku Band

A novel single feed aperture-coupled wideband dielectric resonator antenna (DRA) exhibiting righ-handed circular polarization (RHCP) operating in the Ku-band frequency range is presented. The aperture-coupled single feed design utilizes back-side microstrip excitation through a novel bow-tie-shaped cross-slots in the ground plane. Extensive simulation parametric studies resulted in a 3 dB axial ratio (AR) bandwidth of 17.24% at a center frequency of 13 GHz, where the dielectric resonator is excited in its HEM11δresonant mode. A prototype DRA was fabricated with some limitations and experimentally verified for the impedance matching and radiation patterns showing circular polarization.

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