Abstract
Intrinsically narrowband and highly tunable systems
are a promising way to address the bandwidth challenge
of LTE. However, narrowband antennas exhibit low efficiencies.
This paper details the loss mechanism of narrowband antennas
by investigating the contribution of the resistance of the tuner,
the soldering tin and the conductivity of the antenna material.
It shows that conductive loss from the non-perfect electric
conductor becomes the main source of loss for certain Q values.
This loss is intrinsic to the antenna manufacturing and cannot
be mitigated even with the best conductor, i.e. silver. Therefore,
conductive loss poses a limit to narrowband antennas and to
tuning range.
are a promising way to address the bandwidth challenge
of LTE. However, narrowband antennas exhibit low efficiencies.
This paper details the loss mechanism of narrowband antennas
by investigating the contribution of the resistance of the tuner,
the soldering tin and the conductivity of the antenna material.
It shows that conductive loss from the non-perfect electric
conductor becomes the main source of loss for certain Q values.
This loss is intrinsic to the antenna manufacturing and cannot
be mitigated even with the best conductor, i.e. silver. Therefore,
conductive loss poses a limit to narrowband antennas and to
tuning range.
| Original language | English |
|---|---|
| Journal | I E E E Transactions on Antennas and Propagation |
| Volume | 66 |
| Issue number | 5 |
| Pages (from-to) | 2599-2604 |
| Number of pages | 6 |
| ISSN | 0018-926X |
| DOIs | |
| Publication status | Published - Feb 2018 |
Keywords
- 4G mobile communication
- antenna efficiency
- antenna measurements
- multifrequency antennas
- reconfigurable antennas