This paper presents an ultracompact antenna design suited for digital video broadcasting-
handheld (DVB-H) reception devices. The DVB-H frequency band is ranging from 4 70 to …

A compact multiband tunable PIFA system using a varactor as an active tuning component is
presented covering 88-2175 MHz. The antenna was designed to cover the mobile telephone …

Mobile data subscriptions are expected to more than double and mobile wireless traffic to
increase by more than tenfold over the next few years. Proliferation of smart phones, tablets …

This paper presents a novel design of a reconfigurable miniaturized planar spiral monopole
antenna suitable for TVWS applications. The proposed antenna is designed on a FR4 epoxy …

A review of the various methods for designing frequency agile antennas is undertaken.
Examples of techniques for achieving either discrete or continuous frequency tuning are …

This paper presents a novel reconfigurable chassis-antenna for use in current and future
wireless communication systems. The antenna uses a pair of coupling elements which give …

In this paper, a varactor tunable helical antenna for DVB-H (Digital Video Broadcasting for
Handheld devices) at 470-702 MHz is presented. The frequency tuning is implemented by …

In this paper, a low profile, broadband, dielectric resonant antenna (DRA) with a U-shaped
water layer is presented for DVB-H (470–862 MHz) mobile applications. The U-shaped …

A compact varactor‐tuned planar inverted‐F antenna is introduced for digital video
broadcast‐handheld (DVB‐H) applications. The antenna size is 20× 40× 5 mm3, making it …

Cognitive Radio systems require antennas and microwave components to be actively tuned
for different parts of the frequency spectrum. In this paper results of a study of two antenna …