Wideband microstrip‐fed tapered slot antennas and phased array |
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| Authors: | Wen‐Hua Tu Sang‐Gyu Kim Kai Chang |
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| Affiliation: | 1. Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843‐3128;2. Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843‐3128Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843‐3128 |
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| Abstract: | Two wideband tapered slot antennas are designed, fabricated, and tested. The first antenna, which is fabricated on a high dielectric constant substrate (?r = 10.2), shows a measured return loss of better than 10 dB from 1.6 to 12.4 GHz (7.7:1 bandwidth), and an antenna gain varying from 3.6 to 7.8 dBi. The second antenna is built on a low dielectric constant substrate (?r = 2.2), and demonstrates return loss of better than 10 dB from 1.8 to 15.2 GHz (8.4:1 bandwidth). The second antenna also has improved antenna gain, from 5 to 15.6 dBi, and is used to build a wideband 1 × 4 H‐plane phased array with a total gain of 9–17 dBi and a beam steering angle of ±15° from 3 to 12 GHz. © 2007 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2007. |
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| Keywords: | phased array tapered slot antenna ultra‐wideband antenna |
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