Calibration Quality Analysis of Phased Array Antennas

Kilic, Ozgehan
Yalim, Alper
Cetintepe, Cagri
Demir, Şimşek
A phased array antenna (PAA) system can be calibrated by using several methods. In general, the aim of this calibration is to guarantee that the systematic errors are diminished. Still there can be residual errors due to the random errors in the system. These residual errors may decrease the correction accuracy of the calibration. This correction accuracy can be quantified as a quality factor. In this paper, quality of the Rotating Electric-Field Vector (REV) calibration method is examined with a statistical approach. Also, a statistical approach for PAA error analysis is developed for this purpose. This approach is used for the first time for a specific calibration method.
IEEE International Symposium on Antennas and Propagation


Calibration of uniform circular arrays
Aykanat, Buket; Koç, Seyit Sencer; Department of Electrical and Electronics Engineering (2010)
In practice, there exist many error sources which distort the antenna array pattern. For example, elements of antenna arrays influence each other (known as mutual coupling), mismatches in cables and element positions affects the antenna radiation pattern and also unequal gain and phase characteristics of RF receiver distorts the received signal. These effects generally degrade the array performance. They cause an increase in sidelobe levels with an accompanying decrease in gain. Also, these errors limit the...
The effects of mutual coupling between antenna elements of the performance adaptive arrays
Özkaya, Güney; Alatan, Lale; Department of Electrical and Electronics Engineering (2003)
Array processing involves manipulation of signals induced on various antenna elements. In an adaptive array system, the radiation pattern is formed according to the signal environment by using signal processing techniques. Adaptive arrays improve the capacity of mobile communication systems by placing nulls in the direction of interfering sources and by directing independent beams toward various users. Adaptive beamforming algorithms process signals induced on each array element that are assumed not to be a...
Wideband omnidirectional and sector coverage antenna arrays for base stations
Alatan, Lale (2018-01-01)
By using parallel strip line fed printed dipole antennas as array elements, an omnidirectional antenna array and a wide angle sector coverage array operating in octave band are designed. A maximum deviation of ±1.25 dB from the omnidirectional pattern is achieved for the omnidirectional array, and the average gain of the antenna was measured as being 5 dB in the 1.35–2.7GHz band. For the sector coverage array, a special reflector design is utilized to maintain a half power beam width of around 115◦ with a s...
15 W Power Amplifier Modules Using Coaxial Waveguide Combining by Planar Probes
Suna, Gonca; Eker, Taylan; Akkul, Mustafa; Incebacak, Mustafa; Demir, Şimşek; Yliditim, Nevzat (2014-07-11)
Power combining in coaxial waveguide by printed planar probes is investigated. Combiners are designed and implemented at 8-12 GHz and 15-18 GHz. Average introduced insertion loss is measured as 0.5 dB per branch. Power amplifier modules are designed and implemented for both bands. similar to 20 W output power at 8-12 GHz and similar to 12 W output at 15-18 GHz are achieved by efficient power combining.
A low cost uncooled infrared microbolometer focal plane array using the CMOS n-well layer
Tezcan, DS; Eminoglu, S; Akar, OS; Akın, Tayfun (2001-01-25)
This paper reports a low-cost, 256-pixel uncooled infrared microbolometer focal plane array (FPA) implemented using a 0.8 mum CMOS process where the n-well layer is used as the active microbolometer material. The suspended n-well structure is obtained by simple front-end bulk etching of the fabricated CMOS dies, while the n-well region is protected from etching by electrochemical etch-stop technique within a TMAH solution. Electrical connections to the suspended n-well are obtained with polysilicon intercon...
Citation Formats
O. Kilic, A. Yalim, C. Cetintepe, and Ş. Demir, “Calibration Quality Analysis of Phased Array Antennas,” presented at the IEEE International Symposium on Antennas and Propagation, Chicago, IL, 2012, Accessed: 00, 2020. [Online]. Available: