Compact multiband planar monopole antenna for Bluetooth, LTE, and reconfigurable UWB applications including X‐band and Ku‐band wireless communications

Abstract

In this article, a small-printed Bluetooth/LTE/UWB/X-band/Ku-band monopole antenna with high rejection triple band-notch is presented. Notched bands include WiMAX (IEEE802.16 3.30-3.80 GHz), WLAN IEEE802.11a/h/j/n (5. , and downlink satellite system (7.1-7.9 GHz). By including inverted T-shaped stub and etching two C-shaped slots on the radiating patch, triple band-notch function is obtained with measured high band rejection (VSWR = 14.59 at 3.69 GHz, VSWR = 39.40 at 5.42 GHz, and VSWR = 6.43 at 7.57 GHz) and covers a UWB useable fractional bandwidth of 157.75% (2.285-19.35 GHz = 17.065 GHz). Reconfigurable characteristics are obtained using PIN diodes, which control the individual notched bands. Proposed antenna is printed on Rogers RT/duroid5880 substrate with compact dimensions of 20 × 22 mm 2 . Proposed antenna finds its applications for Bluetooth, LTE, UWB, other multiple wireless applications for close range radar (8-12 GHz) in X-band, and satellite communication in Ku-Band with omnidirectional pattern in H-plane. K E Y W O R D S downlink satellite system, fractional bandwidth, long-term evolution-LTE, omnidirectional, reconfigurable, triple notch, WiMAX, WLAN

A Novel Meander Bowtie-Shaped Antenna with Multi-Resonant and Rejection Bands for Modern 5G Communications

“…A lanky leaf antenna was reported in [11] to produce two rejection bands within the UWB range of 2.8-10 GHz. A small monopole antenna was adjusted in [12] to produce triple rejection bands within the UWB of 2.285-19.35 GHz with 5.88 dB gain and utilizes three PIN diodes. Four nested hexagonal fractal antennas were designed in [13] to operate in multiple frequency bands.…”

Circuit Modelling of Broadband Antenna Using Vector Fitting and Foster Form Approaches for IoT Applications

“…An approach is also provided for establishing the antenna's input impedance model in the frequency domain, which involves the generation of a rational function approximation with actual coefficients. Several circuit models have been made to perform equivalent-circuit models of different UWB antenna shapes [20][21][22][23][24]. Some available and helpful equivalent circuit model synthesizing techniques were discussed and reported in [17,[25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40] for readers' further and deep knowledge.…”