Accurate measurement techniques for 75 ohms antenna with 50 ohms vector network analyzer

• Autorzy: Pumpoung Tajchai , Wongsiritorn Pitchanun

Identyfikatory

DOI

10.15199/48.2020.06.07

Warianty tytułu

PL

Metoda dokładnego badania 75-omowej anteny przy pomocy wektorowego analizatora sieci

• Języki publikacji: EN

Abstrakty

EN

This paper described accurate measurement techniques of a 75 ohms antenna with 50 ohms vector network analyzer (VNA). The antenna under test (AUT) was a commercial antenna (SP-073 DTV antenna). The analysis techniques used three basic principles namely the return loss, Friis formula and absolute gain Eq.s to solve the differences of characteristics impedance (Zo). The experimental results showed that although the Zo of AUT was different from the VNA it could also measure the impedance, radiation pattern and gain without the 50 to 75 Ohms converter. While the use of converter led to unacceptable results.

PL

W pracy opisano metodę dokładnego badania anteny 75-ohms przy pomocy analizatora wektorowego sieci VNA. Badania przeprowadzono na przykładzie anteny SP-073-DTV. |Metoda analizy wykorzystuje trzy główne zasady: straty powotnre, formułę Friis i równanie wzmocnienia.

Słowa kluczowe

EN

absolute gain; characteristic impedance; friis formula; reflection coefficient; VNA

PL

antena 75-omowa; badania anteny; wektorowy analizator sieci

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2020
• Tom: R. 96, nr 6
• Strony: 39--43
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr.

Twórcy

autor

Pumpoung Tajchai

• Department of Telecommunications Engineering, Faculty of Engineering and Architecture, Rajamangala University of Technology Isan, Nakhon Ratchasima, 30000, Thailand

autor

Wongsiritorn Pitchanun

• Department of Telecommunications Engineering, Faculty of Engineering, Rajamangala University of Technology Rattanakosin, Nakhon Pathom, 73170, Thailand

Bibliografia

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• [2] Breed G., Why 50 Ohms? The Readers Respond!, High Frequency Electronics, 6 (2007), 63-67
• [3] Keysight Technologies 2000-2019, “Network Analyzers,” Available at: https://www.keysight.com/en/pcxx2015001/ network-analyzers?nid=-32503.0&cc=TH&lc=eng
• [4] Wong. L., Chi Y. W., Brian C., Yang S., Internal DTV antenna for folder-type mobile phone, Microwave Optical Technology Letter, 48 (2006), 1015-1019
• [5] Piotr J.-M., Grzegorz T., Mariusz W., Flexible antenna design for semi-passive HF RFID transponder in ink-jet technology, Przegląd Elektrotechniczny, 4 (2015), 1-5
• [6] 2019 WilsonAmplifiers.com, “ANTENNAS & PARTS: Wilson Electronics 50 ohm to 75ohm Converter – 859955.” Available at: https://www.wilsonamplifiers.com
• [7] Pozar D. M., Microwave Engineering, John Wiley & Sons, 2012
• [8] Farzaneh S., Ozturk A. K., Sebak A. R., Paknys R., Antenna- Pattern Measurement Using Spectrum Analyzer for Systems with Frequency Translation, IEEE Antennas and Propagation Magazine, 51 (2009), No. 3, 126–131
• [9] Varnoosfaderani, M. V., Thiel, D. V., Junwei Lu., External Parasitic Elements on Clothing for Improved Performance of Wearable Antennas. IEEE Sensors Journal, 15 (2015), No. 1, 307-315
• [10] Sun, L., Zhang, G., Sun, B., Tang, W., Yuan, J., A Single Patch Antenna with Broadside and Conical Radiation Patterns for 3G/4G Pattern Diversity. IEEE Antennas and Wireless Propagation Letters, 15 (2016), 433–436
• [11] Bhardwaj, S., Nahar, N. K., Volakis, J. L., A Cost-Effective Phase less Pattern Measurement Method for a CP Antenna in a Submillimetre-Wave Band. IEEE Antennas and Wireless Propagation Letters, 16 (2017), 1683–1686
• [12] Balanis C. A., Antenna Theory Analysis and Design John Wiley & Sons, 2005
• [13] Pumpoung T., Phongcharoenpanich C., Design of wideband tag antenna for UHF RFID system using modified T-match and meander-line techniques, Electromagnetics J, 35 (2015), No.5, 340-354
• [14] NBTC, “Spectrum Management Master Plan No. 3 (B.E. 2560) (2017)”, Available at: https://www.nbtc.go.th/spectrum_manageme nt/

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).