Abstract
A compact, frequency-reconfigurable filtenna with sharp out-of-band rejection in both its wideband and continuously tunable narrowband states is presented. It is intended for use in cognitive radio applications. The wideband state is the sensing state and operationally covers 2.35 - 4.98 GHz. The narrow band states are intended to cover communications within the 3.05 GHz to 4.39 GHz range, which completely covers the WiMAX band and the satellite communications C-band. A PIN diode is employed to switch between these wide and narrow band operational states. Two varactor diodes are used to shift the operational frequencies continuously among the narrowband states. The filtenna consists of a funnel-shaped monopole augmented with a reconfigurable filter; it has a compact electrical size: 0.235 λL × 0.392 λL, where the wavelength λL corresponds to the lower bound of its operational frequencies. The measured reflection coefficients, radiation patterns, and realized gains for both operational states are in good agreement with their simulated values.
| Original language | English (US) |
|---|---|
| Journal | IEEE Transactions on Antennas and Propagation |
| DOIs | |
| State | Accepted/In press - Aug 5 2017 |
Fingerprint
Keywords
- Cognitive radio
- filtenna
- frequency-reconfigurable
- monopole antenna
- reconfigurable antennas
- reconfigurable filters
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Compact, Frequency-Reconfigurable Filtenna with Sharply Defined Wideband and Continuously Tunable Narrowband States. / Tang, Ming Chun; Wen, Zheng; Wang, Hao; Li, Mei; Ziolkowski, Richard W.
In: IEEE Transactions on Antennas and Propagation, 05.08.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Compact, Frequency-Reconfigurable Filtenna with Sharply Defined Wideband and Continuously Tunable Narrowband States
AU - Tang, Ming Chun
AU - Wen, Zheng
AU - Wang, Hao
AU - Li, Mei
AU - Ziolkowski, Richard W
PY - 2017/8/5
Y1 - 2017/8/5
N2 - A compact, frequency-reconfigurable filtenna with sharp out-of-band rejection in both its wideband and continuously tunable narrowband states is presented. It is intended for use in cognitive radio applications. The wideband state is the sensing state and operationally covers 2.35 - 4.98 GHz. The narrow band states are intended to cover communications within the 3.05 GHz to 4.39 GHz range, which completely covers the WiMAX band and the satellite communications C-band. A PIN diode is employed to switch between these wide and narrow band operational states. Two varactor diodes are used to shift the operational frequencies continuously among the narrowband states. The filtenna consists of a funnel-shaped monopole augmented with a reconfigurable filter; it has a compact electrical size: 0.235 λL × 0.392 λL, where the wavelength λL corresponds to the lower bound of its operational frequencies. The measured reflection coefficients, radiation patterns, and realized gains for both operational states are in good agreement with their simulated values.
AB - A compact, frequency-reconfigurable filtenna with sharp out-of-band rejection in both its wideband and continuously tunable narrowband states is presented. It is intended for use in cognitive radio applications. The wideband state is the sensing state and operationally covers 2.35 - 4.98 GHz. The narrow band states are intended to cover communications within the 3.05 GHz to 4.39 GHz range, which completely covers the WiMAX band and the satellite communications C-band. A PIN diode is employed to switch between these wide and narrow band operational states. Two varactor diodes are used to shift the operational frequencies continuously among the narrowband states. The filtenna consists of a funnel-shaped monopole augmented with a reconfigurable filter; it has a compact electrical size: 0.235 λL × 0.392 λL, where the wavelength λL corresponds to the lower bound of its operational frequencies. The measured reflection coefficients, radiation patterns, and realized gains for both operational states are in good agreement with their simulated values.
KW - Cognitive radio
KW - filtenna
KW - frequency-reconfigurable
KW - monopole antenna
KW - reconfigurable antennas
KW - reconfigurable filters
UR - http://www.scopus.com/inward/record.url?scp=85028835900&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85028835900&partnerID=8YFLogxK
U2 - 10.1109/TAP.2017.2736535
DO - 10.1109/TAP.2017.2736535
M3 - Article
AN - SCOPUS:85028835900
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
ER -