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A Broadband Differential Antenna Based on Common-Gate/Common-Source Active Balun Feed

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Published/Copyright: June 27, 2019
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Frequenz
From the journal Frequenz Volume 73 Issue 7-8

Abstract

In this paper, a novel broadband differential antenna is designed. An active balun is utilized to realize the wideband differential feed to achieve low cross- polarization antenna radiation within the working frequency of 1.0–1.6 GHz. The active balun uses a common-gate/common-source structure to achieve two equal-amplitude signals with 180° phase difference. The differential antenna is composed of rectangular slot floor and symmetrical radiation patch. The antenna is fed by the out-of-phase output of the active balun. The tested results in 1.0–1.6 GHz show the cross-polarization of E and H plane of the proposed differential antenna are lower than −22 dB, with maximum radiation direction gain is 2.3 dBi. The measured reflection coefficient of the proposed differential antenna based on the active balun feed is in good agreement with the simulation data.

Keywords: broadband; differential antenna; active balun; cross-polarization

Acknowledgements

This work is supported in part by Natural Science Foundation of Chongqing (grant No. cstc2017jcyjAX0008), in part by NSFC (grant No. 61871063, 41606203).

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Received: 2018-06-29
Published Online: 2019-06-27
Published in Print: 2019-07-26

© 2019 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Compact and Circularly Polarized Hemispherical DRA for C-Band Applications
  4. Design and Development of Low-Profile Multi-Band Antenna Fed by SIW Cavity Resonator Using Twin Apertures
  5. Design of a Miniaturized UWB-MIMO Antenna with Four Notched-Band Characteristics
  6. A Broadband Differential Antenna Based on Common-Gate/Common-Source Active Balun Feed
  7. A Balanced Dual-Band BPF with High CM Suppression and Improved Selectivity
  8. A Lowpass Filter Design Using Curved and Fountain Shaped Resonators
  9. A Path-Specific Interpolation-and Weighting-Method to Speed up Ray-Tracer Path-Finding
  10. A Novel Method for High Frequency-Resolution Group Delay Acquisition Based on Tikhonov Regularization
https://doi.org/10.1515/freq-2018-0143
Keywords for this article
broadband; differential antenna; active balun; cross-polarization

Articles in the same Issue

  1. Frontmatter
  2. Research Articles
  3. Compact and Circularly Polarized Hemispherical DRA for C-Band Applications
  4. Design and Development of Low-Profile Multi-Band Antenna Fed by SIW Cavity Resonator Using Twin Apertures
  5. Design of a Miniaturized UWB-MIMO Antenna with Four Notched-Band Characteristics
  6. A Broadband Differential Antenna Based on Common-Gate/Common-Source Active Balun Feed
  7. A Balanced Dual-Band BPF with High CM Suppression and Improved Selectivity
  8. A Lowpass Filter Design Using Curved and Fountain Shaped Resonators
  9. A Path-Specific Interpolation-and Weighting-Method to Speed up Ray-Tracer Path-Finding
  10. A Novel Method for High Frequency-Resolution Group Delay Acquisition Based on Tikhonov Regularization
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