ATL|Antenna Technology Laboratory

ATL | Antenna Technology Laboratory

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Open Positions

ATL is hiring highly-motivated students for advanced antenna technologies

Our expertise is in the field of advanced antenna technologies for both military and civil applications. Examples of military applications are related to satellites, missiles, reconnaissance aircraft, and various unmanned military vehicles. Not a fan of military stuff? We also deal with civil wireless communications technologies, such as 5G communications, wireless power transfer, and OAM communications. Check out the open positions below and feel free to come see us!

M.S./Ph.D. Students (Combined Course as well)

A. Minimum Requirements

B.S./M.S. Degree with strong background/interests on one/many of i), ii), iii), and iv) will be preferred
- i) Antennas, electromagnetic waves, and wave propagation
- ii) RF circuit design and RF hardware implementation
- iii) Software skills: MATLAB, LABVIEW, C++, Fortran, etc.
- iv) Passion and Enthusiasm that cover all

B. Salary

M.S.: 800,000 KRW (before tax)
- + 200,000 KRW/additional 0.5 participation
- + Performance-based incentives
Ph.D.: 1,100,000 KRW (before tax)
- + 200,000 KRW/additional 0.5 participation
- + Performance-based incentives
Remarks: 1100 KRW = 1 US Dollar

C. Benefit

An opportunity to live in on-campus dormitory
An opportunity to attend domestic/international conferences at least once per year

Post Doc. Researcher

A. Minimum Requirements

Ph.D. Degree
At least 1 SCI(E) Journal paper (within the past 3 years)

B. Salary

Basic: 2,800,000 KRW (before tax)
Extra: TBD (Ex>more than 500,000 KRW/project (before tax))
1100 KRW = 1 US Dollar

C. Benefit

An opportunity to live in on-campus dormitory
An opportunity to attend domestic/international conferences at least once per year

Contact Information

Name: Prof. Gangil Byun (변강일)Email: byun(at)unist.ac.krPhone: +82-52-217-2107

Detail information about how to prepare your application can be found at http://adm-g.intl.unist.ac.kr/admissions/guidelines/

Research Details

Design of small antennas and antenna arrays
The use of arrays with multiple antennas has become essential for adaptive...

The use of arrays with multiple antennas has become essential for adaptive beamforming in advanced wireless communication systems. Typically, arrays are used to adjust the direction of beams and nulls by multiplying complex weights to antenna ports for more reliable communication links in a multipath environment. This beamforming capability can be extended to estimate the direction of signals and mitigate the effects of interference; however, a growing demand for more effective beamforming capability in handheld devices with limited space has led to several technical challenges from an antenna engineering standpoint. First, active element patterns are distorted by strong mutual coupling between the array elements. Second, these distorted radiation characteristics result in lower estimation accuracy, increased ambiguity, and poor resolution in adaptive beamforming operations. Although various miniaturization techniques have been applied to the radiating elements in an effort to employ more antennas in a limited space, the antennas experience an additional gain reduction with an undesired frequency shift due to the narrow matching bandwidth, which cannot exceed the fundamental bandwidth limit. Thus, there has been a growing demand for altering the traditional approach of multiple-antenna arrays to solve these technical challenges, which allows for improving the beamforming performance with a miniaturized aperture size.
Phased and time-modulated array antennas
Traditionally, various beamforming systems based on phased arrays are...
Traditionally, various beamforming systems based on phased arrays are widely adopted in military and civil applications, however, in searching for less complex alternatives, active research has been stimulated for time-modulated array antennas. Charactersitscs of the TMA antennas are listed below:
- Phase shifters are replaced to RF switches that can be used to steered the array patterns.
- The use of RF switches results in different weights with respect to the period and the duty.
- Advantages of using the TMA are in lighter weights, lower costs, and lower complexity, which may carry greater potentials for more advanced future wireless communications technologies.
Optimization of antennas and array configurations
Optimization techniques are extremely important in the designing process of...

Optimization techniques are extremely important in the designing process of antennas and antenna arrays to improve the overall system performances by taking into account antenna characteristics, mutual coupling effects, platform effects, etc. We mainly focus on the genetic algorithm, a.k.a. GA, and are also working very hard to develop a more efficient optimization process based on the machine learning process.
Beamforming hardware implementation
Implementation of beamforming hardware is essential for antenna engineers...

Implementation of beamforming hardware is essential for antenna engineers to verify the feasibility of the developed antennas and antenna arrays through field tests.
Microwave sensing and metasurfaces
Demands on microwave sensing and metasurfaces have increased due to...

Demands on microwave sensing and metasurfaces have increased due to the ease of fabrication and cost efficiency. ATL is recently focusing on this topic to collaborate with others for interdisciplinary research. Possible applications can be extremely high-Q resonances for sensing, such as bio-related technologies.