Metamaterials is a young subject born in the 21st century. It is concerned with artificial
materials which can have electrical and magnetic properties difficult or impossible to find in …

The advantage of using a 0/spl deg/feed structure in filter design is that two extra
transmission zeros are created in the stopband while the passband response remains …

This paper proposes a bandpass filter design method for suppressing spurious responses in
the stopband by choosing the constitutive resonators with the same fundamental frequency …

Wide-stopband and compact microstrip bandpass filters (BPFs) are proposed using various
dissimilar quarter-wavelength (/spl lambda//4) stepped-impedance resonators (SIRs) for …

This paper presents a new approach for the design of high-gain and wide-bandwidth planar
antenna arrays. It is based on the coupling matrix theory which allows the design of the …

Compact miniaturized hairpin resonators are used to design cross-coupled filters with a dual-
passband response of elliptic function type. The hairpin resonators are treated as a stepped …

A new dual-band planar filter has been proposed. It is shown that the two transmission
bands can be excited and designed using proposed resonators which combine different …

This letter proposes a compact dual-polarized endfire antenna array for 5G millimeter-wave
(mmWave) applications. The dual-polarized antenna unit is constructed by an open-ended …

A high selective bandpass filter and a high isolation diplexer by using mixed
electromagnetic coupling have been presented. The filter transmission zeros (TZs) are …

A few-pole microstrip elliptic function bandpass filter is designed using compact miniaturized
microstrip hairpin resonators. It is shown that the filter has a very small size. The full-wave …