Related Experiment Video
Updated: Jul 31, 2026
13:44
Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
15.3K
A Wideband Millimeter-Wave Dual-Beam Dielectric Resonator Antenna with Substrate Integration Capability
Jin Shi1,2,3, Ranhao Xu1,3, Bowen Wu1,3
1School of Information Science and Technology, Nantong University, Nantong 226019, China.
Micromachines
|August 29, 2024
Summary
A novel wideband dual-beam dielectric resonator antenna (DRA) offers improved performance for millimeter-wave applications. This antenna achieves wider bandwidth and higher efficiency, suitable for advanced wireless systems.
Area of Science:
- Electromagnetics and Wave Propagation
- Antenna Theory and Design
- Microwave Engineering
Background:
- Millimeter-wave (mm-wave) applications require antennas with wide bandwidth and stable dual-beam radiation.
- Existing dual-beam antennas often face limitations in bandwidth, efficiency, and integration.
Purpose of the Study:
- To propose a wideband dual-beam dielectric resonator antenna (DRA) with substrate integration capability for mm-wave applications.
- To enhance antenna performance by controlling radiation modes and improving impedance matching.
Main Methods:
- Utilized air vias along the x-direction to shift undesirable radiation modes and extended rectangular patches to move conical-beam modes.
- Employed a T-shaped line coupled dual-slot structure to excite TE211 and TE411 modes for dual-beam radiation.
- Incorporated air slots for improved impedance matching and substrate integration.
Main Results:
- Achieved a wideband DRA with stable dual-beam radiation angles.
- Demonstrated a 1x4 array with 41.2% impedance matching bandwidth.
- Dual beams directed between ±30° and ±35°.
Conclusions:
- The proposed DRA exhibits wider bandwidth, higher radiation efficiency, and substrate integration capability compared to state-of-the-art antennas.
- The design is well-suited for demanding mm-wave applications.
- The substrate integrated dielectric resonator (SIDR) approach facilitates miniaturization and integration.
Related Concept Videos
01:10Generating Electromagnetic Radiations
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...
01:28Standing Waves in a Cavity
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
01:18Clipper Circuit
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...