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Designing a low frequency broadband absorber is a nontrivial task in terms of establishing a trade‐off between overall absorber thickness, wide absorption bandwidth, and miniaturized unit cell size. To address the issue, we propose a novel broadband absorber design based on multilayered configuration, which covers the lower bands of the radar spectrum. The design is implemented using resistive ink patterns that are printed on an economical FR4 substrate. The reflectivity response of the proposed broadband absorber is less than −10 dB in the frequency range 1.26 to 4.38 GHz, covering the L and S bands of the radar spectrum with a fractional bandwidth of 110.63%. Furthermore, the structure has a miniaturized unit cell of dimension 0.057λL and a notable small thickness of 0.079λL. The implementation of the equivalent circuit model further validates the proposed design. The design is fabricated and experimentally verified. The simulation and measured results are in good congruence with each other.

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A co‐axial waveguide is filled with an anisotropic hyperbolic medium that has a radial negative component of the tensorial permittivity and permeability. This waveguide has no cutoff frequency for propagating transverse electric and transverse magnetic modes. These modes of propagation are described by Bessel functions of first and second kinds (Neumann function) with an imaginary order. This feature of below cutoff propagation is useful for miniaturizing the size of the waveguide. Further, the double negative character of the radial components of the permittivity and permeability also occasion a better impedance match of the waveguide to free space. Such waveguide can be projected to be useful as miniaturized efficient coupler and imaging probes.