Error Vector Magnitude, Intermodulation, and Radiation Characteristics of a Bandwidth- and Pattern-Reconfigurable Antenna
| Autor: | Sebastian Blanch, Bedri A. Cetiner, Jordi Romeu, Md. Asaduzzaman Towfiq, A. Khalat, Lluis Jofre |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. ANTENNALAB - Grup d'Antenes i Sistemes Radio |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Antenes i agrupacions d'antenes [Àrees temàtiques de la UPC] Passive intermodulation (PIM) Reconfigurable antenna Multifrequency antennas Reconfigurable antennas (RAs) business.industry Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Antenes de microones Radiation Microstrip law.invention Radiation pattern Nonlinear system Microwave antennas Optics law Error vector magnitude (EVM) 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business Diode Intermodulation |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 1548-5757 1536-1225 |
| DOI: | 10.1109/lawp.2019.2933379 |
| Popis: | © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This letter presents the error vector magnitude (EVM), intermodulation (IM), and radiation performances of a reconfigurable antenna capable of varying its bandwidth between 3.4-3.6 and 3.1-3.9 GHz bands, and steering its main beam into three directions pertaining to ¿ ¿{-30°, 0°, 30°}andf E {0°} for each band. Two parasitically coupled reconfigurable layers located on top of a driven antenna used in conjunction with a reconfigurable feed layer employing p-i-n diode switches enable a concurrent configuration of an impedance bandwidth and a radiation pattern. The maximum realized gain of ~9 dB has been achieved for all modes of operation as shown by measurements and simulations. Measurements indicated less than -25dB (5.6%) EVM for input powers up to30 dBm and revealed that the combined effects of loose solder joints and large nonlinear response of p-i-n diodes are the main factors resulting in passive IM products. |
| Databáze: | OpenAIRE |
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