Open AccessVariations of P‐shape microstrip antennas for multi‐band dual polarised response
Author(s) -
Deshmukh Amit A.,
Verma Priyanka,
Pawar Shefali
Publication year - 2019
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2018.5333
Subject(s) - microstrip antenna , stub (electronics) , microstrip , patch antenna , broadside , bandwidth (computing) , physics , electrical impedance , multi band device , frequency band , frequency response , acoustics , optics , materials science , antenna (radio) , electronic engineering , telecommunications , electrical engineering , engineering , quantum mechanics
A novel design of a P‐shape microstrip antenna is proposed. The stub in the P‐shape patch modifies the frequency and resonant mode distributions at second‐order TM 20 mode which along with TM 10 and TM 01 modes yields dual‐polarised triple‐frequency response, showing 1−1.5% of impedance bandwidth (BW) at each frequency. To enhance the gain, air‐suspended designs for the P‐shape patch are proposed. It yields the broadside gain of 1.5−5 dBi across three frequencies. Enhancement in BW of the P‐shape patch is obtained by using its gap‐coupled variations leading to 69‐ or 96‐shape configurations. On a thinner substrate, these gap‐coupled antennas give BW of 3−5% across three frequencies.